/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:12:08,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:12:08,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:12:08,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:12:08,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:12:08,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:12:08,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:12:08,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:12:08,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:12:08,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:12:08,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:12:08,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:12:08,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:12:08,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:12:08,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:12:08,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:12:08,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:12:08,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:12:08,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:12:08,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:12:08,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:12:08,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:12:08,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:12:08,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:12:08,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:12:08,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:12:08,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:12:08,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:12:08,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:12:08,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:12:08,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:12:08,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:12:08,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:12:08,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:12:08,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:12:08,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:12:08,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:12:08,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:12:08,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:12:08,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:12:08,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:12:08,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:12:08,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:12:08,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:12:08,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:12:08,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:12:08,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:12:08,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:12:08,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:12:08,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:12:08,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:12:08,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:12:08,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:12:08,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:12:08,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:12:08,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:12:08,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:12:08,572 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:12:08,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:12:08,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:12:08,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:12:08,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:12:08,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:12:08,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:12:08,574 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:12:08,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:12:09,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:12:09,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:12:09,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:12:09,018 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:12:09,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-04 16:12:09,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7257b0a24/288bfb1f757048028212966767513d7e/FLAGdbca49d4c [2020-09-04 16:12:09,600 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:12:09,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-04 16:12:09,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7257b0a24/288bfb1f757048028212966767513d7e/FLAGdbca49d4c [2020-09-04 16:12:09,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7257b0a24/288bfb1f757048028212966767513d7e [2020-09-04 16:12:09,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:12:09,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:12:09,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:12:09,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:12:09,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:12:09,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:12:09" (1/1) ... [2020-09-04 16:12:09,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:09, skipping insertion in model container [2020-09-04 16:12:09,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:12:09" (1/1) ... [2020-09-04 16:12:10,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:12:10,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:12:10,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:12:10,233 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:12:10,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:12:10,266 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:12:10,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10 WrapperNode [2020-09-04 16:12:10,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:12:10,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:12:10,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:12:10,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:12:10,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... [2020-09-04 16:12:10,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:12:10,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:12:10,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:12:10,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:12:10,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:12:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:12:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:12:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-04 16:12:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:12:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:12:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:12:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-04 16:12:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:12:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:12:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:12:10,671 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:12:10,671 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:12:10,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:12:10 BoogieIcfgContainer [2020-09-04 16:12:10,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:12:10,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:12:10,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:12:10,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:12:10,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:12:09" (1/3) ... [2020-09-04 16:12:10,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572a2843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:12:10, skipping insertion in model container [2020-09-04 16:12:10,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:12:10" (2/3) ... [2020-09-04 16:12:10,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572a2843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:12:10, skipping insertion in model container [2020-09-04 16:12:10,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:12:10" (3/3) ... [2020-09-04 16:12:10,705 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-04 16:12:10,723 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:12:10,735 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:12:10,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:12:10,819 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:12:10,819 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:12:10,819 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:12:10,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:12:10,820 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:12:10,820 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:12:10,820 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:12:10,820 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:12:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-04 16:12:10,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-04 16:12:10,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:10,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:10,849 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:10,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-04 16:12:10,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:10,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672351652] [2020-09-04 16:12:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:10,932 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:12:11,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672351652] [2020-09-04 16:12:11,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:11,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:12:11,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697869060] [2020-09-04 16:12:11,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:12:11,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:11,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:12:11,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:12:11,142 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-04 16:12:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:11,286 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-04 16:12:11,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:12:11,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-04 16:12:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:11,302 INFO L225 Difference]: With dead ends: 53 [2020-09-04 16:12:11,303 INFO L226 Difference]: Without dead ends: 35 [2020-09-04 16:12:11,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:12:11,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-04 16:12:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-04 16:12:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-04 16:12:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-04 16:12:11,377 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-04 16:12:11,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:11,378 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-04 16:12:11,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:12:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-04 16:12:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-04 16:12:11,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:11,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:11,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:12:11,382 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:11,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:11,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1947313727, now seen corresponding path program 1 times [2020-09-04 16:12:11,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:11,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365161052] [2020-09-04 16:12:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:11,386 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:12:11,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365161052] [2020-09-04 16:12:11,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:11,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:12:11,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610649989] [2020-09-04 16:12:11,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:12:11,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:11,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:12:11,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:12:11,473 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 4 states. [2020-09-04 16:12:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:11,520 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-09-04 16:12:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:12:11,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-04 16:12:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:11,523 INFO L225 Difference]: With dead ends: 51 [2020-09-04 16:12:11,523 INFO L226 Difference]: Without dead ends: 37 [2020-09-04 16:12:11,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:12:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-04 16:12:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-09-04 16:12:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-04 16:12:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-09-04 16:12:11,539 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 23 [2020-09-04 16:12:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:11,540 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-09-04 16:12:11,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:12:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-09-04 16:12:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-04 16:12:11,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:11,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:11,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:12:11,544 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:11,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-04 16:12:11,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:11,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581972698] [2020-09-04 16:12:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:11,547 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-04 16:12:11,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581972698] [2020-09-04 16:12:11,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:11,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:12:11,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876442525] [2020-09-04 16:12:11,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:12:11,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:11,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:12:11,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:12:11,735 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 6 states. [2020-09-04 16:12:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:11,834 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-09-04 16:12:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:12:11,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-04 16:12:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:11,837 INFO L225 Difference]: With dead ends: 46 [2020-09-04 16:12:11,837 INFO L226 Difference]: Without dead ends: 40 [2020-09-04 16:12:11,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:12:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-04 16:12:11,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-04 16:12:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-04 16:12:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-09-04 16:12:11,852 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 32 [2020-09-04 16:12:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:11,852 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-09-04 16:12:11,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:12:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2020-09-04 16:12:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-04 16:12:11,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:11,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:11,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:12:11,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:11,856 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-04 16:12:11,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:11,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323951605] [2020-09-04 16:12:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:11,859 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:11,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-04 16:12:12,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323951605] [2020-09-04 16:12:12,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:12,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 16:12:12,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663532440] [2020-09-04 16:12:12,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 16:12:12,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:12,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 16:12:12,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:12:12,044 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 7 states. [2020-09-04 16:12:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:12,195 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-09-04 16:12:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 16:12:12,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-09-04 16:12:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:12,198 INFO L225 Difference]: With dead ends: 66 [2020-09-04 16:12:12,198 INFO L226 Difference]: Without dead ends: 60 [2020-09-04 16:12:12,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:12:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-04 16:12:12,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-04 16:12:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-04 16:12:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-09-04 16:12:12,215 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 42 [2020-09-04 16:12:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:12,215 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-09-04 16:12:12,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 16:12:12,216 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-09-04 16:12:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 16:12:12,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:12,218 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:12,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:12:12,219 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:12,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:12,219 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-04 16:12:12,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:12,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646010776] [2020-09-04 16:12:12,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:12,222 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-04 16:12:12,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646010776] [2020-09-04 16:12:12,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:12,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:12:12,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70780295] [2020-09-04 16:12:12,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:12:12,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:12,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:12:12,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:12:12,441 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 8 states. [2020-09-04 16:12:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:12,585 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-09-04 16:12:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 16:12:12,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-04 16:12:12,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:12,588 INFO L225 Difference]: With dead ends: 71 [2020-09-04 16:12:12,588 INFO L226 Difference]: Without dead ends: 65 [2020-09-04 16:12:12,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-04 16:12:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-04 16:12:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-04 16:12:12,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-04 16:12:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2020-09-04 16:12:12,603 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 52 [2020-09-04 16:12:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:12,603 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2020-09-04 16:12:12,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:12:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2020-09-04 16:12:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-04 16:12:12,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:12,606 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:12,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 16:12:12,606 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-04 16:12:12,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:12,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978584440] [2020-09-04 16:12:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:12,609 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-09-04 16:12:12,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978584440] [2020-09-04 16:12:12,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:12,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 16:12:12,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245136402] [2020-09-04 16:12:12,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 16:12:12,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:12,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 16:12:12,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-04 16:12:12,835 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand 9 states. [2020-09-04 16:12:13,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:13,020 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2020-09-04 16:12:13,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 16:12:13,020 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-04 16:12:13,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:13,022 INFO L225 Difference]: With dead ends: 76 [2020-09-04 16:12:13,022 INFO L226 Difference]: Without dead ends: 70 [2020-09-04 16:12:13,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-04 16:12:13,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-04 16:12:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-04 16:12:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-04 16:12:13,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-09-04 16:12:13,036 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 62 [2020-09-04 16:12:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:13,037 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-09-04 16:12:13,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 16:12:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-09-04 16:12:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-04 16:12:13,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:13,040 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:13,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 16:12:13,040 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:13,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-04 16:12:13,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:13,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733563946] [2020-09-04 16:12:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:13,043 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-04 16:12:13,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733563946] [2020-09-04 16:12:13,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:13,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 16:12:13,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889351019] [2020-09-04 16:12:13,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 16:12:13,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:13,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 16:12:13,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:12:13,256 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 10 states. [2020-09-04 16:12:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:13,432 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2020-09-04 16:12:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 16:12:13,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-09-04 16:12:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:13,434 INFO L225 Difference]: With dead ends: 81 [2020-09-04 16:12:13,434 INFO L226 Difference]: Without dead ends: 75 [2020-09-04 16:12:13,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-04 16:12:13,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-04 16:12:13,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-04 16:12:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-04 16:12:13,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2020-09-04 16:12:13,457 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 72 [2020-09-04 16:12:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:13,458 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2020-09-04 16:12:13,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 16:12:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2020-09-04 16:12:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-04 16:12:13,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:13,461 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:13,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 16:12:13,461 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:13,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:13,462 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-04 16:12:13,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:13,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109275177] [2020-09-04 16:12:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:13,468 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-09-04 16:12:13,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109275177] [2020-09-04 16:12:13,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:13,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 16:12:13,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485621043] [2020-09-04 16:12:13,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 16:12:13,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:13,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 16:12:13,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-04 16:12:13,769 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand 11 states. [2020-09-04 16:12:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:13,937 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2020-09-04 16:12:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 16:12:13,938 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-09-04 16:12:13,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:13,940 INFO L225 Difference]: With dead ends: 86 [2020-09-04 16:12:13,940 INFO L226 Difference]: Without dead ends: 80 [2020-09-04 16:12:13,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2020-09-04 16:12:13,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-04 16:12:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-04 16:12:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-04 16:12:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2020-09-04 16:12:13,952 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 82 [2020-09-04 16:12:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:13,953 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2020-09-04 16:12:13,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 16:12:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2020-09-04 16:12:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-04 16:12:13,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:13,954 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:13,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 16:12:13,955 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:13,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:13,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-04 16:12:13,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:13,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392909060] [2020-09-04 16:12:13,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:13,957 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:13,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-04 16:12:14,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392909060] [2020-09-04 16:12:14,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:14,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 16:12:14,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407918019] [2020-09-04 16:12:14,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 16:12:14,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:14,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 16:12:14,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-09-04 16:12:14,250 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand 12 states. [2020-09-04 16:12:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:14,438 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2020-09-04 16:12:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 16:12:14,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-09-04 16:12:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:14,440 INFO L225 Difference]: With dead ends: 91 [2020-09-04 16:12:14,441 INFO L226 Difference]: Without dead ends: 85 [2020-09-04 16:12:14,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2020-09-04 16:12:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-04 16:12:14,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-04 16:12:14,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:12:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2020-09-04 16:12:14,464 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 92 [2020-09-04 16:12:14,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:14,465 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2020-09-04 16:12:14,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 16:12:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2020-09-04 16:12:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-04 16:12:14,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:14,469 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:14,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 16:12:14,470 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:14,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1932915479, now seen corresponding path program 8 times [2020-09-04 16:12:14,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:14,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86825245] [2020-09-04 16:12:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:14,475 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-09-04 16:12:14,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86825245] [2020-09-04 16:12:14,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:14,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-04 16:12:14,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027123770] [2020-09-04 16:12:14,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 16:12:14,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:14,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 16:12:14,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-09-04 16:12:14,922 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand 13 states. [2020-09-04 16:12:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:15,119 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-09-04 16:12:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 16:12:15,120 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-09-04 16:12:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:15,121 INFO L225 Difference]: With dead ends: 96 [2020-09-04 16:12:15,121 INFO L226 Difference]: Without dead ends: 90 [2020-09-04 16:12:15,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=167, Invalid=295, Unknown=0, NotChecked=0, Total=462 [2020-09-04 16:12:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-04 16:12:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-04 16:12:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-04 16:12:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2020-09-04 16:12:15,138 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 102 [2020-09-04 16:12:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:15,139 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-09-04 16:12:15,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 16:12:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2020-09-04 16:12:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-04 16:12:15,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:15,141 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:15,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 16:12:15,141 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:15,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1924549309, now seen corresponding path program 9 times [2020-09-04 16:12:15,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:15,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656315118] [2020-09-04 16:12:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:15,144 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-09-04 16:12:15,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656315118] [2020-09-04 16:12:15,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:15,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 16:12:15,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401126369] [2020-09-04 16:12:15,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 16:12:15,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:15,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 16:12:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-09-04 16:12:15,624 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 14 states. [2020-09-04 16:12:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:15,882 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2020-09-04 16:12:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 16:12:15,882 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2020-09-04 16:12:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:15,884 INFO L225 Difference]: With dead ends: 101 [2020-09-04 16:12:15,884 INFO L226 Difference]: Without dead ends: 95 [2020-09-04 16:12:15,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-09-04 16:12:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-04 16:12:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-09-04 16:12:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-04 16:12:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2020-09-04 16:12:15,895 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 112 [2020-09-04 16:12:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:15,896 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2020-09-04 16:12:15,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 16:12:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2020-09-04 16:12:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-04 16:12:15,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:15,898 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:15,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 16:12:15,898 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:15,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1700562025, now seen corresponding path program 10 times [2020-09-04 16:12:15,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:15,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297277874] [2020-09-04 16:12:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:15,901 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:15,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-09-04 16:12:16,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297277874] [2020-09-04 16:12:16,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:16,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 16:12:16,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011789769] [2020-09-04 16:12:16,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 16:12:16,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:16,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 16:12:16,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-09-04 16:12:16,374 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 15 states. [2020-09-04 16:12:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:16,585 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2020-09-04 16:12:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 16:12:16,585 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 122 [2020-09-04 16:12:16,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:16,587 INFO L225 Difference]: With dead ends: 106 [2020-09-04 16:12:16,587 INFO L226 Difference]: Without dead ends: 100 [2020-09-04 16:12:16,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=236, Invalid=414, Unknown=0, NotChecked=0, Total=650 [2020-09-04 16:12:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-04 16:12:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-04 16:12:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-04 16:12:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-09-04 16:12:16,596 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 122 [2020-09-04 16:12:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:16,597 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-09-04 16:12:16,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 16:12:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-09-04 16:12:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-04 16:12:16,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:16,599 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:16,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 16:12:16,599 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:16,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:16,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1676247997, now seen corresponding path program 11 times [2020-09-04 16:12:16,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:16,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222340294] [2020-09-04 16:12:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:16,601 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:16,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2020-09-04 16:12:17,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222340294] [2020-09-04 16:12:17,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:17,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-04 16:12:17,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302859716] [2020-09-04 16:12:17,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 16:12:17,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:17,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 16:12:17,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-09-04 16:12:17,240 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 16 states. [2020-09-04 16:12:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:17,471 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2020-09-04 16:12:17,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 16:12:17,471 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 132 [2020-09-04 16:12:17,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:17,473 INFO L225 Difference]: With dead ends: 111 [2020-09-04 16:12:17,473 INFO L226 Difference]: Without dead ends: 105 [2020-09-04 16:12:17,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=275, Invalid=481, Unknown=0, NotChecked=0, Total=756 [2020-09-04 16:12:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-04 16:12:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-09-04 16:12:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-04 16:12:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-09-04 16:12:17,483 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 132 [2020-09-04 16:12:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:17,483 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-09-04 16:12:17,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 16:12:17,484 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-09-04 16:12:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 16:12:17,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:17,486 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:17,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-04 16:12:17,486 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -923497495, now seen corresponding path program 12 times [2020-09-04 16:12:17,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:17,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107738516] [2020-09-04 16:12:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:17,488 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:17,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2020-09-04 16:12:18,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107738516] [2020-09-04 16:12:18,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:18,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-04 16:12:18,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897980775] [2020-09-04 16:12:18,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 16:12:18,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:18,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 16:12:18,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-09-04 16:12:18,176 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 17 states. [2020-09-04 16:12:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:18,473 INFO L93 Difference]: Finished difference Result 116 states and 130 transitions. [2020-09-04 16:12:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 16:12:18,474 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 142 [2020-09-04 16:12:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:18,475 INFO L225 Difference]: With dead ends: 116 [2020-09-04 16:12:18,476 INFO L226 Difference]: Without dead ends: 110 [2020-09-04 16:12:18,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=317, Invalid=553, Unknown=0, NotChecked=0, Total=870 [2020-09-04 16:12:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-04 16:12:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-09-04 16:12:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-04 16:12:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2020-09-04 16:12:18,485 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 142 [2020-09-04 16:12:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:18,486 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2020-09-04 16:12:18,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 16:12:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2020-09-04 16:12:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-04 16:12:18,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:18,488 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:18,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-04 16:12:18,488 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:18,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:18,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1719700669, now seen corresponding path program 13 times [2020-09-04 16:12:18,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:18,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561104413] [2020-09-04 16:12:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:18,491 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:18,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2020-09-04 16:12:19,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561104413] [2020-09-04 16:12:19,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:19,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-04 16:12:19,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402993583] [2020-09-04 16:12:19,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 16:12:19,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:19,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 16:12:19,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-09-04 16:12:19,289 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 18 states. [2020-09-04 16:12:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:19,549 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-09-04 16:12:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 16:12:19,550 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 152 [2020-09-04 16:12:19,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:19,552 INFO L225 Difference]: With dead ends: 121 [2020-09-04 16:12:19,552 INFO L226 Difference]: Without dead ends: 115 [2020-09-04 16:12:19,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=630, Unknown=0, NotChecked=0, Total=992 [2020-09-04 16:12:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-04 16:12:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-09-04 16:12:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-04 16:12:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2020-09-04 16:12:19,569 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 152 [2020-09-04 16:12:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:19,570 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2020-09-04 16:12:19,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 16:12:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2020-09-04 16:12:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-04 16:12:19,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:19,573 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:19,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-04 16:12:19,574 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:19,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1375329431, now seen corresponding path program 14 times [2020-09-04 16:12:19,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:19,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052250618] [2020-09-04 16:12:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:19,576 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:19,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2020-09-04 16:12:20,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052250618] [2020-09-04 16:12:20,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:20,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-09-04 16:12:20,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883966212] [2020-09-04 16:12:20,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-04 16:12:20,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:20,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-04 16:12:20,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-09-04 16:12:20,493 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand 19 states. [2020-09-04 16:12:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:20,884 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2020-09-04 16:12:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 16:12:20,884 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 162 [2020-09-04 16:12:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:20,888 INFO L225 Difference]: With dead ends: 126 [2020-09-04 16:12:20,888 INFO L226 Difference]: Without dead ends: 120 [2020-09-04 16:12:20,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=410, Invalid=712, Unknown=0, NotChecked=0, Total=1122 [2020-09-04 16:12:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-04 16:12:20,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-09-04 16:12:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-04 16:12:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 134 transitions. [2020-09-04 16:12:20,902 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 134 transitions. Word has length 162 [2020-09-04 16:12:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:20,904 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 134 transitions. [2020-09-04 16:12:20,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-04 16:12:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 134 transitions. [2020-09-04 16:12:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 16:12:20,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:20,910 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:20,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-04 16:12:20,911 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:20,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:20,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1446025795, now seen corresponding path program 15 times [2020-09-04 16:12:20,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:20,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589204955] [2020-09-04 16:12:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:20,915 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-09-04 16:12:21,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589204955] [2020-09-04 16:12:21,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:21,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-09-04 16:12:21,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110102985] [2020-09-04 16:12:21,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-04 16:12:21,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:21,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-04 16:12:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-09-04 16:12:21,932 INFO L87 Difference]: Start difference. First operand 120 states and 134 transitions. Second operand 20 states. [2020-09-04 16:12:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:22,344 INFO L93 Difference]: Finished difference Result 131 states and 145 transitions. [2020-09-04 16:12:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 16:12:22,345 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 172 [2020-09-04 16:12:22,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:22,347 INFO L225 Difference]: With dead ends: 131 [2020-09-04 16:12:22,348 INFO L226 Difference]: Without dead ends: 125 [2020-09-04 16:12:22,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=799, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 16:12:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-04 16:12:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-04 16:12:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-04 16:12:22,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2020-09-04 16:12:22,377 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 172 [2020-09-04 16:12:22,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:22,378 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2020-09-04 16:12:22,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-04 16:12:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2020-09-04 16:12:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-04 16:12:22,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:22,383 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:22,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-04 16:12:22,384 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:22,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:22,384 INFO L82 PathProgramCache]: Analyzing trace with hash -435860759, now seen corresponding path program 16 times [2020-09-04 16:12:22,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:22,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477954365] [2020-09-04 16:12:22,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:22,387 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-09-04 16:12:23,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477954365] [2020-09-04 16:12:23,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:23,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-09-04 16:12:23,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258513186] [2020-09-04 16:12:23,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-04 16:12:23,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:23,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-04 16:12:23,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-09-04 16:12:23,585 INFO L87 Difference]: Start difference. First operand 125 states and 139 transitions. Second operand 21 states. [2020-09-04 16:12:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:23,924 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2020-09-04 16:12:23,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 16:12:23,925 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 182 [2020-09-04 16:12:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:23,926 INFO L225 Difference]: With dead ends: 136 [2020-09-04 16:12:23,926 INFO L226 Difference]: Without dead ends: 130 [2020-09-04 16:12:23,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=515, Invalid=891, Unknown=0, NotChecked=0, Total=1406 [2020-09-04 16:12:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-04 16:12:23,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-09-04 16:12:23,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-04 16:12:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 144 transitions. [2020-09-04 16:12:23,951 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 144 transitions. Word has length 182 [2020-09-04 16:12:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:23,952 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 144 transitions. [2020-09-04 16:12:23,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-04 16:12:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 144 transitions. [2020-09-04 16:12:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-04 16:12:23,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:23,958 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:23,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-04 16:12:23,958 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:23,960 INFO L82 PathProgramCache]: Analyzing trace with hash 399896899, now seen corresponding path program 17 times [2020-09-04 16:12:23,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:23,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693849385] [2020-09-04 16:12:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:23,963 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:24,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2020-09-04 16:12:25,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693849385] [2020-09-04 16:12:25,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:25,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-09-04 16:12:25,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556826762] [2020-09-04 16:12:25,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 16:12:25,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:25,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 16:12:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-09-04 16:12:25,147 INFO L87 Difference]: Start difference. First operand 130 states and 144 transitions. Second operand 22 states. [2020-09-04 16:12:25,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:25,529 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-09-04 16:12:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 16:12:25,531 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 192 [2020-09-04 16:12:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:25,532 INFO L225 Difference]: With dead ends: 141 [2020-09-04 16:12:25,533 INFO L226 Difference]: Without dead ends: 135 [2020-09-04 16:12:25,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=572, Invalid=988, Unknown=0, NotChecked=0, Total=1560 [2020-09-04 16:12:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-04 16:12:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-09-04 16:12:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-04 16:12:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 149 transitions. [2020-09-04 16:12:25,544 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 149 transitions. Word has length 192 [2020-09-04 16:12:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:25,545 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 149 transitions. [2020-09-04 16:12:25,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 16:12:25,545 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 149 transitions. [2020-09-04 16:12:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-04 16:12:25,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:25,548 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:25,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-04 16:12:25,548 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:25,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1566966377, now seen corresponding path program 18 times [2020-09-04 16:12:25,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:25,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759122394] [2020-09-04 16:12:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:25,550 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:25,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2020-09-04 16:12:26,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759122394] [2020-09-04 16:12:26,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:26,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-09-04 16:12:26,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625391743] [2020-09-04 16:12:26,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-04 16:12:26,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:26,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-04 16:12:26,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=292, Unknown=0, NotChecked=0, Total=506 [2020-09-04 16:12:26,831 INFO L87 Difference]: Start difference. First operand 135 states and 149 transitions. Second operand 23 states. [2020-09-04 16:12:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:27,253 INFO L93 Difference]: Finished difference Result 146 states and 160 transitions. [2020-09-04 16:12:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-04 16:12:27,255 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 202 [2020-09-04 16:12:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:27,257 INFO L225 Difference]: With dead ends: 146 [2020-09-04 16:12:27,257 INFO L226 Difference]: Without dead ends: 140 [2020-09-04 16:12:27,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=632, Invalid=1090, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 16:12:27,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-04 16:12:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-09-04 16:12:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-04 16:12:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-09-04 16:12:27,273 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 202 [2020-09-04 16:12:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:27,274 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-09-04 16:12:27,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-04 16:12:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-09-04 16:12:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-04 16:12:27,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:27,276 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:27,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-04 16:12:27,277 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:27,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:27,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1494972483, now seen corresponding path program 19 times [2020-09-04 16:12:27,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:27,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528005748] [2020-09-04 16:12:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:27,281 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2020-09-04 16:12:28,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528005748] [2020-09-04 16:12:28,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:28,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-09-04 16:12:28,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631133146] [2020-09-04 16:12:28,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-04 16:12:28,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:28,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-04 16:12:28,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=317, Unknown=0, NotChecked=0, Total=552 [2020-09-04 16:12:28,554 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 24 states. [2020-09-04 16:12:29,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:29,060 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2020-09-04 16:12:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 16:12:29,061 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 212 [2020-09-04 16:12:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:29,065 INFO L225 Difference]: With dead ends: 151 [2020-09-04 16:12:29,065 INFO L226 Difference]: Without dead ends: 145 [2020-09-04 16:12:29,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=695, Invalid=1197, Unknown=0, NotChecked=0, Total=1892 [2020-09-04 16:12:29,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-04 16:12:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-09-04 16:12:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-09-04 16:12:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2020-09-04 16:12:29,076 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 212 [2020-09-04 16:12:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:29,077 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2020-09-04 16:12:29,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-04 16:12:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2020-09-04 16:12:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-04 16:12:29,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:29,079 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:29,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-04 16:12:29,079 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:29,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1536969193, now seen corresponding path program 20 times [2020-09-04 16:12:29,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:29,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549630319] [2020-09-04 16:12:29,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:29,082 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2020-09-04 16:12:30,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549630319] [2020-09-04 16:12:30,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:30,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-09-04 16:12:30,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604642260] [2020-09-04 16:12:30,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-04 16:12:30,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:30,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-04 16:12:30,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=343, Unknown=0, NotChecked=0, Total=600 [2020-09-04 16:12:30,472 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand 25 states. [2020-09-04 16:12:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:30,900 INFO L93 Difference]: Finished difference Result 156 states and 170 transitions. [2020-09-04 16:12:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-04 16:12:30,900 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 222 [2020-09-04 16:12:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:30,902 INFO L225 Difference]: With dead ends: 156 [2020-09-04 16:12:30,902 INFO L226 Difference]: Without dead ends: 150 [2020-09-04 16:12:30,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=761, Invalid=1309, Unknown=0, NotChecked=0, Total=2070 [2020-09-04 16:12:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-09-04 16:12:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-09-04 16:12:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-04 16:12:30,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 164 transitions. [2020-09-04 16:12:30,915 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 164 transitions. Word has length 222 [2020-09-04 16:12:30,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:30,916 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 164 transitions. [2020-09-04 16:12:30,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-04 16:12:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 164 transitions. [2020-09-04 16:12:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-04 16:12:30,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:30,918 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:30,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-04 16:12:30,919 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:30,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1985138877, now seen corresponding path program 21 times [2020-09-04 16:12:30,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:30,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298797515] [2020-09-04 16:12:30,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:30,921 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:31,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2020-09-04 16:12:32,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298797515] [2020-09-04 16:12:32,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:32,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-09-04 16:12:32,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682582878] [2020-09-04 16:12:32,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-04 16:12:32,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:32,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-04 16:12:32,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=370, Unknown=0, NotChecked=0, Total=650 [2020-09-04 16:12:32,527 INFO L87 Difference]: Start difference. First operand 150 states and 164 transitions. Second operand 26 states. [2020-09-04 16:12:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:33,035 INFO L93 Difference]: Finished difference Result 161 states and 175 transitions. [2020-09-04 16:12:33,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 16:12:33,036 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 232 [2020-09-04 16:12:33,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:33,037 INFO L225 Difference]: With dead ends: 161 [2020-09-04 16:12:33,037 INFO L226 Difference]: Without dead ends: 155 [2020-09-04 16:12:33,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=830, Invalid=1426, Unknown=0, NotChecked=0, Total=2256 [2020-09-04 16:12:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-04 16:12:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-04 16:12:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-04 16:12:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 169 transitions. [2020-09-04 16:12:33,051 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 169 transitions. Word has length 232 [2020-09-04 16:12:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:33,052 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 169 transitions. [2020-09-04 16:12:33,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-04 16:12:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 169 transitions. [2020-09-04 16:12:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-04 16:12:33,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:33,054 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:33,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-04 16:12:33,054 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:33,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1021566615, now seen corresponding path program 22 times [2020-09-04 16:12:33,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:33,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915412986] [2020-09-04 16:12:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:33,056 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:34,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2020-09-04 16:12:34,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915412986] [2020-09-04 16:12:34,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:34,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-09-04 16:12:34,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103602953] [2020-09-04 16:12:34,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-04 16:12:34,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:34,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-04 16:12:34,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2020-09-04 16:12:34,667 INFO L87 Difference]: Start difference. First operand 155 states and 169 transitions. Second operand 27 states. [2020-09-04 16:12:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:35,192 INFO L93 Difference]: Finished difference Result 166 states and 180 transitions. [2020-09-04 16:12:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-04 16:12:35,193 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 242 [2020-09-04 16:12:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:35,195 INFO L225 Difference]: With dead ends: 166 [2020-09-04 16:12:35,195 INFO L226 Difference]: Without dead ends: 160 [2020-09-04 16:12:35,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=902, Invalid=1548, Unknown=0, NotChecked=0, Total=2450 [2020-09-04 16:12:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-04 16:12:35,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-04 16:12:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-04 16:12:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 174 transitions. [2020-09-04 16:12:35,208 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 174 transitions. Word has length 242 [2020-09-04 16:12:35,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:35,208 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 174 transitions. [2020-09-04 16:12:35,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-04 16:12:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 174 transitions. [2020-09-04 16:12:35,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-04 16:12:35,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:35,210 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:35,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-04 16:12:35,211 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:35,211 INFO L82 PathProgramCache]: Analyzing trace with hash -835250621, now seen corresponding path program 23 times [2020-09-04 16:12:35,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:35,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236741054] [2020-09-04 16:12:35,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:35,213 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:35,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2020-09-04 16:12:37,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236741054] [2020-09-04 16:12:37,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:37,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-09-04 16:12:37,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898302981] [2020-09-04 16:12:37,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-04 16:12:37,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:37,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-04 16:12:37,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=427, Unknown=0, NotChecked=0, Total=756 [2020-09-04 16:12:37,099 INFO L87 Difference]: Start difference. First operand 160 states and 174 transitions. Second operand 28 states. [2020-09-04 16:12:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:37,661 INFO L93 Difference]: Finished difference Result 171 states and 185 transitions. [2020-09-04 16:12:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 16:12:37,661 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 252 [2020-09-04 16:12:37,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:37,664 INFO L225 Difference]: With dead ends: 171 [2020-09-04 16:12:37,664 INFO L226 Difference]: Without dead ends: 165 [2020-09-04 16:12:37,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=977, Invalid=1675, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 16:12:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-04 16:12:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-04 16:12:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-04 16:12:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 179 transitions. [2020-09-04 16:12:37,676 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 179 transitions. Word has length 252 [2020-09-04 16:12:37,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:37,677 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 179 transitions. [2020-09-04 16:12:37,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-04 16:12:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 179 transitions. [2020-09-04 16:12:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-04 16:12:37,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:37,679 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:37,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-04 16:12:37,680 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:37,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1364822249, now seen corresponding path program 24 times [2020-09-04 16:12:37,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:37,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56964183] [2020-09-04 16:12:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:37,682 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:37,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:37,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:37,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:37,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:38,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2020-09-04 16:12:39,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56964183] [2020-09-04 16:12:39,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:39,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-09-04 16:12:39,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672225730] [2020-09-04 16:12:39,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-04 16:12:39,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:39,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-04 16:12:39,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=457, Unknown=0, NotChecked=0, Total=812 [2020-09-04 16:12:39,702 INFO L87 Difference]: Start difference. First operand 165 states and 179 transitions. Second operand 29 states. [2020-09-04 16:12:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:40,325 INFO L93 Difference]: Finished difference Result 176 states and 190 transitions. [2020-09-04 16:12:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-04 16:12:40,326 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 262 [2020-09-04 16:12:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:40,327 INFO L225 Difference]: With dead ends: 176 [2020-09-04 16:12:40,327 INFO L226 Difference]: Without dead ends: 170 [2020-09-04 16:12:40,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1055, Invalid=1807, Unknown=0, NotChecked=0, Total=2862 [2020-09-04 16:12:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-09-04 16:12:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-09-04 16:12:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-04 16:12:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 184 transitions. [2020-09-04 16:12:40,346 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 184 transitions. Word has length 262 [2020-09-04 16:12:40,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:40,347 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 184 transitions. [2020-09-04 16:12:40,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-04 16:12:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 184 transitions. [2020-09-04 16:12:40,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-04 16:12:40,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:40,349 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:40,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-04 16:12:40,349 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:40,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1067111101, now seen corresponding path program 25 times [2020-09-04 16:12:40,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:40,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707858996] [2020-09-04 16:12:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:40,352 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:40,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1575 trivial. 0 not checked. [2020-09-04 16:12:42,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707858996] [2020-09-04 16:12:42,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:42,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-09-04 16:12:42,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13817545] [2020-09-04 16:12:42,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-04 16:12:42,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:42,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-04 16:12:42,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=488, Unknown=0, NotChecked=0, Total=870 [2020-09-04 16:12:42,367 INFO L87 Difference]: Start difference. First operand 170 states and 184 transitions. Second operand 30 states. [2020-09-04 16:12:42,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:42,969 INFO L93 Difference]: Finished difference Result 181 states and 195 transitions. [2020-09-04 16:12:42,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-04 16:12:42,970 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 272 [2020-09-04 16:12:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:42,973 INFO L225 Difference]: With dead ends: 181 [2020-09-04 16:12:42,973 INFO L226 Difference]: Without dead ends: 175 [2020-09-04 16:12:42,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1136, Invalid=1944, Unknown=0, NotChecked=0, Total=3080 [2020-09-04 16:12:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-04 16:12:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2020-09-04 16:12:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-09-04 16:12:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2020-09-04 16:12:42,986 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 272 [2020-09-04 16:12:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:42,987 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2020-09-04 16:12:42,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-04 16:12:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2020-09-04 16:12:42,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-09-04 16:12:42,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:42,989 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:42,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-09-04 16:12:42,990 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:42,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:42,990 INFO L82 PathProgramCache]: Analyzing trace with hash -557285271, now seen corresponding path program 26 times [2020-09-04 16:12:42,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:42,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619753093] [2020-09-04 16:12:42,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:42,992 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:44,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2020-09-04 16:12:45,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619753093] [2020-09-04 16:12:45,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:45,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2020-09-04 16:12:45,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546326630] [2020-09-04 16:12:45,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-04 16:12:45,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:45,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-04 16:12:45,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=520, Unknown=0, NotChecked=0, Total=930 [2020-09-04 16:12:45,065 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand 31 states. [2020-09-04 16:12:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:45,674 INFO L93 Difference]: Finished difference Result 186 states and 200 transitions. [2020-09-04 16:12:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 16:12:45,676 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 282 [2020-09-04 16:12:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:45,678 INFO L225 Difference]: With dead ends: 186 [2020-09-04 16:12:45,678 INFO L226 Difference]: Without dead ends: 180 [2020-09-04 16:12:45,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1220, Invalid=2086, Unknown=0, NotChecked=0, Total=3306 [2020-09-04 16:12:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-04 16:12:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-09-04 16:12:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-09-04 16:12:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2020-09-04 16:12:45,691 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 282 [2020-09-04 16:12:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:45,692 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2020-09-04 16:12:45,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-04 16:12:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2020-09-04 16:12:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-09-04 16:12:45,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:45,694 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:45,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-09-04 16:12:45,695 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:45,695 INFO L82 PathProgramCache]: Analyzing trace with hash 786658371, now seen corresponding path program 27 times [2020-09-04 16:12:45,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:45,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241091129] [2020-09-04 16:12:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:45,697 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:45,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:45,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:46,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2020-09-04 16:12:47,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241091129] [2020-09-04 16:12:47,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:47,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-09-04 16:12:47,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837787783] [2020-09-04 16:12:47,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-04 16:12:47,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:47,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-04 16:12:47,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=553, Unknown=0, NotChecked=0, Total=992 [2020-09-04 16:12:47,956 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand 32 states. [2020-09-04 16:12:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:48,602 INFO L93 Difference]: Finished difference Result 191 states and 205 transitions. [2020-09-04 16:12:48,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-04 16:12:48,603 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 292 [2020-09-04 16:12:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:48,605 INFO L225 Difference]: With dead ends: 191 [2020-09-04 16:12:48,605 INFO L226 Difference]: Without dead ends: 185 [2020-09-04 16:12:48,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1307, Invalid=2233, Unknown=0, NotChecked=0, Total=3540 [2020-09-04 16:12:48,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-04 16:12:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-04 16:12:48,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-04 16:12:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 199 transitions. [2020-09-04 16:12:48,618 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 199 transitions. Word has length 292 [2020-09-04 16:12:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:48,619 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 199 transitions. [2020-09-04 16:12:48,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-04 16:12:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 199 transitions. [2020-09-04 16:12:48,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-04 16:12:48,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:48,621 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:48,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-04 16:12:48,622 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:48,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1629681687, now seen corresponding path program 28 times [2020-09-04 16:12:48,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:48,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272590326] [2020-09-04 16:12:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:48,624 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:48,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:49,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2020-09-04 16:12:51,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272590326] [2020-09-04 16:12:51,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:51,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-09-04 16:12:51,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531908243] [2020-09-04 16:12:51,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-04 16:12:51,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:51,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-04 16:12:51,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=587, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 16:12:51,190 INFO L87 Difference]: Start difference. First operand 185 states and 199 transitions. Second operand 33 states. [2020-09-04 16:12:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:51,884 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-09-04 16:12:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 16:12:51,885 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 302 [2020-09-04 16:12:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:51,887 INFO L225 Difference]: With dead ends: 196 [2020-09-04 16:12:51,887 INFO L226 Difference]: Without dead ends: 190 [2020-09-04 16:12:51,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1397, Invalid=2385, Unknown=0, NotChecked=0, Total=3782 [2020-09-04 16:12:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-04 16:12:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-09-04 16:12:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-04 16:12:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 204 transitions. [2020-09-04 16:12:51,900 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 204 transitions. Word has length 302 [2020-09-04 16:12:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:51,901 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 204 transitions. [2020-09-04 16:12:51,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-04 16:12:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 204 transitions. [2020-09-04 16:12:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-04 16:12:51,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:51,903 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:51,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-04 16:12:51,904 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash -581047485, now seen corresponding path program 29 times [2020-09-04 16:12:51,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:51,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586232478] [2020-09-04 16:12:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:51,906 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:53,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2117 trivial. 0 not checked. [2020-09-04 16:12:54,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586232478] [2020-09-04 16:12:54,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:54,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-09-04 16:12:54,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564058840] [2020-09-04 16:12:54,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-04 16:12:54,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:54,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-04 16:12:54,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=622, Unknown=0, NotChecked=0, Total=1122 [2020-09-04 16:12:54,547 INFO L87 Difference]: Start difference. First operand 190 states and 204 transitions. Second operand 34 states. [2020-09-04 16:12:55,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:55,283 INFO L93 Difference]: Finished difference Result 201 states and 215 transitions. [2020-09-04 16:12:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-04 16:12:55,284 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 312 [2020-09-04 16:12:55,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:55,285 INFO L225 Difference]: With dead ends: 201 [2020-09-04 16:12:55,285 INFO L226 Difference]: Without dead ends: 195 [2020-09-04 16:12:55,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1490, Invalid=2542, Unknown=0, NotChecked=0, Total=4032 [2020-09-04 16:12:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-04 16:12:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-04 16:12:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-04 16:12:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 209 transitions. [2020-09-04 16:12:55,298 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 209 transitions. Word has length 312 [2020-09-04 16:12:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:55,298 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 209 transitions. [2020-09-04 16:12:55,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-04 16:12:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 209 transitions. [2020-09-04 16:12:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-09-04 16:12:55,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:55,300 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:55,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-04 16:12:55,301 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:55,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1611341673, now seen corresponding path program 30 times [2020-09-04 16:12:55,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:55,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857411520] [2020-09-04 16:12:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:55,303 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:55,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:56,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2265 trivial. 0 not checked. [2020-09-04 16:12:58,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857411520] [2020-09-04 16:12:58,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:12:58,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2020-09-04 16:12:58,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231434383] [2020-09-04 16:12:58,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-04 16:12:58,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:12:58,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-04 16:12:58,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=532, Invalid=658, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 16:12:58,173 INFO L87 Difference]: Start difference. First operand 195 states and 209 transitions. Second operand 35 states. [2020-09-04 16:12:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:12:58,902 INFO L93 Difference]: Finished difference Result 206 states and 220 transitions. [2020-09-04 16:12:58,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-04 16:12:58,903 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 322 [2020-09-04 16:12:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:12:58,904 INFO L225 Difference]: With dead ends: 206 [2020-09-04 16:12:58,905 INFO L226 Difference]: Without dead ends: 200 [2020-09-04 16:12:58,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1586, Invalid=2704, Unknown=0, NotChecked=0, Total=4290 [2020-09-04 16:12:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-09-04 16:12:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-09-04 16:12:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-04 16:12:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 214 transitions. [2020-09-04 16:12:58,917 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 214 transitions. Word has length 322 [2020-09-04 16:12:58,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:12:58,917 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 214 transitions. [2020-09-04 16:12:58,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-04 16:12:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 214 transitions. [2020-09-04 16:12:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-09-04 16:12:58,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:12:58,920 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:12:58,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-04 16:12:58,920 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:12:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:12:58,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1149276739, now seen corresponding path program 31 times [2020-09-04 16:12:58,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:12:58,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26495485] [2020-09-04 16:12:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:12:58,923 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:12:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:12:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:12:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:12:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:12:59,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:00,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2418 trivial. 0 not checked. [2020-09-04 16:13:01,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26495485] [2020-09-04 16:13:01,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:01,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2020-09-04 16:13:01,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344145014] [2020-09-04 16:13:01,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-09-04 16:13:01,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:01,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-09-04 16:13:01,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=695, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 16:13:01,969 INFO L87 Difference]: Start difference. First operand 200 states and 214 transitions. Second operand 36 states. [2020-09-04 16:13:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:02,766 INFO L93 Difference]: Finished difference Result 211 states and 225 transitions. [2020-09-04 16:13:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-04 16:13:02,767 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 332 [2020-09-04 16:13:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:02,769 INFO L225 Difference]: With dead ends: 211 [2020-09-04 16:13:02,769 INFO L226 Difference]: Without dead ends: 205 [2020-09-04 16:13:02,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1685, Invalid=2871, Unknown=0, NotChecked=0, Total=4556 [2020-09-04 16:13:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-04 16:13:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-09-04 16:13:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-04 16:13:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-04 16:13:02,780 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 332 [2020-09-04 16:13:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:02,781 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-04 16:13:02,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-09-04 16:13:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-04 16:13:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-09-04 16:13:02,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:02,783 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:02,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-04 16:13:02,784 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash -876165399, now seen corresponding path program 32 times [2020-09-04 16:13:02,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:02,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913266783] [2020-09-04 16:13:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:02,786 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:02,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:02,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:03,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:05,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2020-09-04 16:13:06,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913266783] [2020-09-04 16:13:06,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:06,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2020-09-04 16:13:06,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686939323] [2020-09-04 16:13:06,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-04 16:13:06,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:06,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-04 16:13:06,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=733, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 16:13:06,270 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 37 states. [2020-09-04 16:13:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:07,106 INFO L93 Difference]: Finished difference Result 216 states and 230 transitions. [2020-09-04 16:13:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-04 16:13:07,107 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 342 [2020-09-04 16:13:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:07,109 INFO L225 Difference]: With dead ends: 216 [2020-09-04 16:13:07,109 INFO L226 Difference]: Without dead ends: 210 [2020-09-04 16:13:07,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1787, Invalid=3043, Unknown=0, NotChecked=0, Total=4830 [2020-09-04 16:13:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-04 16:13:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-09-04 16:13:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-04 16:13:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 224 transitions. [2020-09-04 16:13:07,122 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 224 transitions. Word has length 342 [2020-09-04 16:13:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:07,122 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 224 transitions. [2020-09-04 16:13:07,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-04 16:13:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 224 transitions. [2020-09-04 16:13:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-09-04 16:13:07,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:07,125 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:07,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-04 16:13:07,125 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1375168835, now seen corresponding path program 33 times [2020-09-04 16:13:07,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:07,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860476371] [2020-09-04 16:13:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:07,132 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:07,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:08,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:09,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2739 trivial. 0 not checked. [2020-09-04 16:13:10,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860476371] [2020-09-04 16:13:10,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:10,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2020-09-04 16:13:10,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269613996] [2020-09-04 16:13:10,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-09-04 16:13:10,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:10,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-09-04 16:13:10,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=772, Unknown=0, NotChecked=0, Total=1406 [2020-09-04 16:13:10,809 INFO L87 Difference]: Start difference. First operand 210 states and 224 transitions. Second operand 38 states. [2020-09-04 16:13:11,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:11,701 INFO L93 Difference]: Finished difference Result 221 states and 235 transitions. [2020-09-04 16:13:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-04 16:13:11,702 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 352 [2020-09-04 16:13:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:11,704 INFO L225 Difference]: With dead ends: 221 [2020-09-04 16:13:11,705 INFO L226 Difference]: Without dead ends: 215 [2020-09-04 16:13:11,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1892, Invalid=3220, Unknown=0, NotChecked=0, Total=5112 [2020-09-04 16:13:11,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-09-04 16:13:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-09-04 16:13:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-09-04 16:13:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 229 transitions. [2020-09-04 16:13:11,717 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 229 transitions. Word has length 352 [2020-09-04 16:13:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:11,717 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 229 transitions. [2020-09-04 16:13:11,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-09-04 16:13:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 229 transitions. [2020-09-04 16:13:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-09-04 16:13:11,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:11,720 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:11,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-09-04 16:13:11,720 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:11,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1501299095, now seen corresponding path program 34 times [2020-09-04 16:13:11,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:11,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856790038] [2020-09-04 16:13:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:11,722 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:11,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:11,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:12,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:13,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:14,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2907 trivial. 0 not checked. [2020-09-04 16:13:15,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856790038] [2020-09-04 16:13:15,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:15,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2020-09-04 16:13:15,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898764531] [2020-09-04 16:13:15,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-09-04 16:13:15,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:15,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-09-04 16:13:15,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=812, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 16:13:15,579 INFO L87 Difference]: Start difference. First operand 215 states and 229 transitions. Second operand 39 states. [2020-09-04 16:13:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:16,493 INFO L93 Difference]: Finished difference Result 226 states and 240 transitions. [2020-09-04 16:13:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-04 16:13:16,494 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 362 [2020-09-04 16:13:16,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:16,496 INFO L225 Difference]: With dead ends: 226 [2020-09-04 16:13:16,496 INFO L226 Difference]: Without dead ends: 220 [2020-09-04 16:13:16,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2000, Invalid=3402, Unknown=0, NotChecked=0, Total=5402 [2020-09-04 16:13:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-04 16:13:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-09-04 16:13:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-04 16:13:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2020-09-04 16:13:16,507 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 362 [2020-09-04 16:13:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:16,507 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2020-09-04 16:13:16,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-09-04 16:13:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2020-09-04 16:13:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-09-04 16:13:16,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:16,510 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:16,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-09-04 16:13:16,510 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:16,511 INFO L82 PathProgramCache]: Analyzing trace with hash 678326339, now seen corresponding path program 35 times [2020-09-04 16:13:16,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:16,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832048305] [2020-09-04 16:13:16,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:16,513 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:16,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:17,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:18,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2020-09-04 16:13:20,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832048305] [2020-09-04 16:13:20,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:20,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2020-09-04 16:13:20,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306229371] [2020-09-04 16:13:20,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-09-04 16:13:20,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:20,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-09-04 16:13:20,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=853, Unknown=0, NotChecked=0, Total=1560 [2020-09-04 16:13:20,560 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 40 states. [2020-09-04 16:13:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:21,498 INFO L93 Difference]: Finished difference Result 231 states and 245 transitions. [2020-09-04 16:13:21,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-04 16:13:21,498 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 372 [2020-09-04 16:13:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:21,501 INFO L225 Difference]: With dead ends: 231 [2020-09-04 16:13:21,501 INFO L226 Difference]: Without dead ends: 225 [2020-09-04 16:13:21,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2111, Invalid=3589, Unknown=0, NotChecked=0, Total=5700 [2020-09-04 16:13:21,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-04 16:13:21,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-09-04 16:13:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-04 16:13:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-04 16:13:21,514 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 372 [2020-09-04 16:13:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:21,514 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-04 16:13:21,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-09-04 16:13:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-04 16:13:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-09-04 16:13:21,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:21,517 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:21,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-09-04 16:13:21,518 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:21,518 INFO L82 PathProgramCache]: Analyzing trace with hash 263636457, now seen corresponding path program 36 times [2020-09-04 16:13:21,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:21,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573457213] [2020-09-04 16:13:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:21,520 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:21,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:22,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3258 trivial. 0 not checked. [2020-09-04 16:13:25,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573457213] [2020-09-04 16:13:25,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:25,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2020-09-04 16:13:25,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673275248] [2020-09-04 16:13:25,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-04 16:13:25,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:25,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-04 16:13:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=745, Invalid=895, Unknown=0, NotChecked=0, Total=1640 [2020-09-04 16:13:25,840 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 41 states. [2020-09-04 16:13:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:26,765 INFO L93 Difference]: Finished difference Result 236 states and 250 transitions. [2020-09-04 16:13:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-04 16:13:26,766 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 382 [2020-09-04 16:13:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:26,769 INFO L225 Difference]: With dead ends: 236 [2020-09-04 16:13:26,769 INFO L226 Difference]: Without dead ends: 230 [2020-09-04 16:13:26,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2225, Invalid=3781, Unknown=0, NotChecked=0, Total=6006 [2020-09-04 16:13:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-09-04 16:13:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-09-04 16:13:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-04 16:13:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 244 transitions. [2020-09-04 16:13:26,782 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 244 transitions. Word has length 382 [2020-09-04 16:13:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:26,783 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 244 transitions. [2020-09-04 16:13:26,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-04 16:13:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 244 transitions. [2020-09-04 16:13:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-09-04 16:13:26,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:26,786 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:26,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-09-04 16:13:26,786 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:26,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:26,786 INFO L82 PathProgramCache]: Analyzing trace with hash -544102589, now seen corresponding path program 37 times [2020-09-04 16:13:26,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:26,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827743074] [2020-09-04 16:13:26,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:26,788 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:26,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:27,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:28,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2020-09-04 16:13:31,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827743074] [2020-09-04 16:13:31,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:31,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2020-09-04 16:13:31,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235705439] [2020-09-04 16:13:31,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-09-04 16:13:31,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:31,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-09-04 16:13:31,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=784, Invalid=938, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 16:13:31,195 INFO L87 Difference]: Start difference. First operand 230 states and 244 transitions. Second operand 42 states. [2020-09-04 16:13:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:32,185 INFO L93 Difference]: Finished difference Result 241 states and 255 transitions. [2020-09-04 16:13:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-04 16:13:32,186 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 392 [2020-09-04 16:13:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:32,187 INFO L225 Difference]: With dead ends: 241 [2020-09-04 16:13:32,188 INFO L226 Difference]: Without dead ends: 235 [2020-09-04 16:13:32,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2342, Invalid=3978, Unknown=0, NotChecked=0, Total=6320 [2020-09-04 16:13:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-04 16:13:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2020-09-04 16:13:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-04 16:13:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 249 transitions. [2020-09-04 16:13:32,201 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 249 transitions. Word has length 392 [2020-09-04 16:13:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:32,201 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 249 transitions. [2020-09-04 16:13:32,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-09-04 16:13:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 249 transitions. [2020-09-04 16:13:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-09-04 16:13:32,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:32,204 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:32,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-09-04 16:13:32,205 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:32,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:32,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1043128983, now seen corresponding path program 38 times [2020-09-04 16:13:32,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:32,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942839752] [2020-09-04 16:13:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:32,207 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:32,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:34,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:35,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3629 trivial. 0 not checked. [2020-09-04 16:13:37,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942839752] [2020-09-04 16:13:37,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:37,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2020-09-04 16:13:37,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447453323] [2020-09-04 16:13:37,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-09-04 16:13:37,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:37,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-09-04 16:13:37,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=824, Invalid=982, Unknown=0, NotChecked=0, Total=1806 [2020-09-04 16:13:37,045 INFO L87 Difference]: Start difference. First operand 235 states and 249 transitions. Second operand 43 states. [2020-09-04 16:13:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:38,073 INFO L93 Difference]: Finished difference Result 246 states and 260 transitions. [2020-09-04 16:13:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-04 16:13:38,075 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 402 [2020-09-04 16:13:38,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:38,077 INFO L225 Difference]: With dead ends: 246 [2020-09-04 16:13:38,077 INFO L226 Difference]: Without dead ends: 240 [2020-09-04 16:13:38,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2462, Invalid=4180, Unknown=0, NotChecked=0, Total=6642 [2020-09-04 16:13:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-09-04 16:13:38,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-09-04 16:13:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-04 16:13:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 254 transitions. [2020-09-04 16:13:38,093 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 254 transitions. Word has length 402 [2020-09-04 16:13:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:38,093 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 254 transitions. [2020-09-04 16:13:38,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-09-04 16:13:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 254 transitions. [2020-09-04 16:13:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-09-04 16:13:38,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:38,096 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:38,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-09-04 16:13:38,097 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:38,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:38,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1141706307, now seen corresponding path program 39 times [2020-09-04 16:13:38,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:38,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703137262] [2020-09-04 16:13:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:38,099 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:39,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:41,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3822 trivial. 0 not checked. [2020-09-04 16:13:43,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703137262] [2020-09-04 16:13:43,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:43,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2020-09-04 16:13:43,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443136286] [2020-09-04 16:13:43,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-09-04 16:13:43,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:43,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-09-04 16:13:43,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=865, Invalid=1027, Unknown=0, NotChecked=0, Total=1892 [2020-09-04 16:13:43,095 INFO L87 Difference]: Start difference. First operand 240 states and 254 transitions. Second operand 44 states. [2020-09-04 16:13:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:44,153 INFO L93 Difference]: Finished difference Result 251 states and 265 transitions. [2020-09-04 16:13:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-04 16:13:44,154 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 412 [2020-09-04 16:13:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:44,157 INFO L225 Difference]: With dead ends: 251 [2020-09-04 16:13:44,157 INFO L226 Difference]: Without dead ends: 245 [2020-09-04 16:13:44,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2585, Invalid=4387, Unknown=0, NotChecked=0, Total=6972 [2020-09-04 16:13:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-04 16:13:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2020-09-04 16:13:44,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 16:13:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 259 transitions. [2020-09-04 16:13:44,171 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 259 transitions. Word has length 412 [2020-09-04 16:13:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:44,171 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 259 transitions. [2020-09-04 16:13:44,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-09-04 16:13:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 259 transitions. [2020-09-04 16:13:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2020-09-04 16:13:44,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:44,174 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:44,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-09-04 16:13:44,175 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1380779241, now seen corresponding path program 40 times [2020-09-04 16:13:44,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:44,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4728903] [2020-09-04 16:13:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:44,178 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:46,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:48,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4020 trivial. 0 not checked. [2020-09-04 16:13:49,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4728903] [2020-09-04 16:13:49,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:49,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2020-09-04 16:13:49,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432331713] [2020-09-04 16:13:49,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-04 16:13:49,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:49,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-04 16:13:49,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=907, Invalid=1073, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 16:13:49,459 INFO L87 Difference]: Start difference. First operand 245 states and 259 transitions. Second operand 45 states. [2020-09-04 16:13:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:50,661 INFO L93 Difference]: Finished difference Result 256 states and 270 transitions. [2020-09-04 16:13:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-04 16:13:50,662 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 422 [2020-09-04 16:13:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:50,664 INFO L225 Difference]: With dead ends: 256 [2020-09-04 16:13:50,665 INFO L226 Difference]: Without dead ends: 250 [2020-09-04 16:13:50,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2711, Invalid=4599, Unknown=0, NotChecked=0, Total=7310 [2020-09-04 16:13:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-04 16:13:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-09-04 16:13:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-04 16:13:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 264 transitions. [2020-09-04 16:13:50,678 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 264 transitions. Word has length 422 [2020-09-04 16:13:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:50,679 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 264 transitions. [2020-09-04 16:13:50,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-04 16:13:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 264 transitions. [2020-09-04 16:13:50,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-09-04 16:13:50,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:50,682 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:50,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-09-04 16:13:50,682 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:50,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:50,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1752390333, now seen corresponding path program 41 times [2020-09-04 16:13:50,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:50,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456125520] [2020-09-04 16:13:50,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:50,686 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:50,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:50,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:51,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:54,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4223 trivial. 0 not checked. [2020-09-04 16:13:56,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456125520] [2020-09-04 16:13:56,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:13:56,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2020-09-04 16:13:56,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873332569] [2020-09-04 16:13:56,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-09-04 16:13:56,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:13:56,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-09-04 16:13:56,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=950, Invalid=1120, Unknown=0, NotChecked=0, Total=2070 [2020-09-04 16:13:56,336 INFO L87 Difference]: Start difference. First operand 250 states and 264 transitions. Second operand 46 states. [2020-09-04 16:13:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:13:57,529 INFO L93 Difference]: Finished difference Result 261 states and 275 transitions. [2020-09-04 16:13:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-09-04 16:13:57,530 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 432 [2020-09-04 16:13:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:13:57,533 INFO L225 Difference]: With dead ends: 261 [2020-09-04 16:13:57,533 INFO L226 Difference]: Without dead ends: 255 [2020-09-04 16:13:57,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2840, Invalid=4816, Unknown=0, NotChecked=0, Total=7656 [2020-09-04 16:13:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-04 16:13:57,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2020-09-04 16:13:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-04 16:13:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 269 transitions. [2020-09-04 16:13:57,550 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 269 transitions. Word has length 432 [2020-09-04 16:13:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:13:57,552 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 269 transitions. [2020-09-04 16:13:57,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-09-04 16:13:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 269 transitions. [2020-09-04 16:13:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-09-04 16:13:57,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:13:57,555 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:13:57,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-09-04 16:13:57,556 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:13:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:13:57,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1905818729, now seen corresponding path program 42 times [2020-09-04 16:13:57,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:13:57,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123152780] [2020-09-04 16:13:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:13:57,559 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:13:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:13:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:57,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:13:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:57,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:13:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:13:59,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:00,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:01,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4431 trivial. 0 not checked. [2020-09-04 16:14:03,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123152780] [2020-09-04 16:14:03,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:03,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2020-09-04 16:14:03,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643434457] [2020-09-04 16:14:03,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-09-04 16:14:03,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:03,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-09-04 16:14:03,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=1168, Unknown=0, NotChecked=0, Total=2162 [2020-09-04 16:14:03,538 INFO L87 Difference]: Start difference. First operand 255 states and 269 transitions. Second operand 47 states. [2020-09-04 16:14:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:04,784 INFO L93 Difference]: Finished difference Result 266 states and 280 transitions. [2020-09-04 16:14:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-04 16:14:04,784 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 442 [2020-09-04 16:14:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:04,787 INFO L225 Difference]: With dead ends: 266 [2020-09-04 16:14:04,787 INFO L226 Difference]: Without dead ends: 260 [2020-09-04 16:14:04,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2972, Invalid=5038, Unknown=0, NotChecked=0, Total=8010 [2020-09-04 16:14:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-04 16:14:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2020-09-04 16:14:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-04 16:14:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 274 transitions. [2020-09-04 16:14:04,802 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 274 transitions. Word has length 442 [2020-09-04 16:14:04,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:04,802 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 274 transitions. [2020-09-04 16:14:04,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-09-04 16:14:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 274 transitions. [2020-09-04 16:14:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-09-04 16:14:04,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:04,806 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:04,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-09-04 16:14:04,806 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:04,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:04,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1354525763, now seen corresponding path program 43 times [2020-09-04 16:14:04,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:04,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723867867] [2020-09-04 16:14:04,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:04,809 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:04,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:05,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:06,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:07,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:08,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:09,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4644 trivial. 0 not checked. [2020-09-04 16:14:11,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723867867] [2020-09-04 16:14:11,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:11,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2020-09-04 16:14:11,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108853757] [2020-09-04 16:14:11,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-09-04 16:14:11,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:11,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-09-04 16:14:11,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1039, Invalid=1217, Unknown=0, NotChecked=0, Total=2256 [2020-09-04 16:14:11,014 INFO L87 Difference]: Start difference. First operand 260 states and 274 transitions. Second operand 48 states. [2020-09-04 16:14:12,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:12,315 INFO L93 Difference]: Finished difference Result 271 states and 285 transitions. [2020-09-04 16:14:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-09-04 16:14:12,316 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 452 [2020-09-04 16:14:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:12,318 INFO L225 Difference]: With dead ends: 271 [2020-09-04 16:14:12,318 INFO L226 Difference]: Without dead ends: 265 [2020-09-04 16:14:12,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3107, Invalid=5265, Unknown=0, NotChecked=0, Total=8372 [2020-09-04 16:14:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-04 16:14:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2020-09-04 16:14:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-04 16:14:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 279 transitions. [2020-09-04 16:14:12,331 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 279 transitions. Word has length 452 [2020-09-04 16:14:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:12,331 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 279 transitions. [2020-09-04 16:14:12,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-09-04 16:14:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 279 transitions. [2020-09-04 16:14:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-09-04 16:14:12,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:12,335 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:12,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-09-04 16:14:12,335 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:12,336 INFO L82 PathProgramCache]: Analyzing trace with hash 724141033, now seen corresponding path program 44 times [2020-09-04 16:14:12,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:12,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139797069] [2020-09-04 16:14:12,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:12,338 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:12,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:12,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:12,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:13,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:15,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:16,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:17,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4862 trivial. 0 not checked. [2020-09-04 16:14:18,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139797069] [2020-09-04 16:14:18,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:18,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2020-09-04 16:14:18,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340949106] [2020-09-04 16:14:18,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-09-04 16:14:18,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:18,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-09-04 16:14:18,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1085, Invalid=1267, Unknown=0, NotChecked=0, Total=2352 [2020-09-04 16:14:18,958 INFO L87 Difference]: Start difference. First operand 265 states and 279 transitions. Second operand 49 states. [2020-09-04 16:14:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:20,313 INFO L93 Difference]: Finished difference Result 276 states and 290 transitions. [2020-09-04 16:14:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-09-04 16:14:20,314 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 462 [2020-09-04 16:14:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:20,315 INFO L225 Difference]: With dead ends: 276 [2020-09-04 16:14:20,315 INFO L226 Difference]: Without dead ends: 270 [2020-09-04 16:14:20,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3245, Invalid=5497, Unknown=0, NotChecked=0, Total=8742 [2020-09-04 16:14:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-04 16:14:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-09-04 16:14:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-04 16:14:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 284 transitions. [2020-09-04 16:14:20,329 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 284 transitions. Word has length 462 [2020-09-04 16:14:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:20,330 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 284 transitions. [2020-09-04 16:14:20,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-09-04 16:14:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 284 transitions. [2020-09-04 16:14:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-09-04 16:14:20,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:20,334 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:20,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-09-04 16:14:20,334 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:20,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:20,334 INFO L82 PathProgramCache]: Analyzing trace with hash -616012989, now seen corresponding path program 45 times [2020-09-04 16:14:20,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:20,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471398119] [2020-09-04 16:14:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:20,337 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:20,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:20,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:20,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:21,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:22,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:23,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:24,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:25,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:25,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:25,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:25,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:25,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5085 trivial. 0 not checked. [2020-09-04 16:14:27,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471398119] [2020-09-04 16:14:27,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:27,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2020-09-04 16:14:27,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739316463] [2020-09-04 16:14:27,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-09-04 16:14:27,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:27,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-09-04 16:14:27,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1132, Invalid=1318, Unknown=0, NotChecked=0, Total=2450 [2020-09-04 16:14:27,224 INFO L87 Difference]: Start difference. First operand 270 states and 284 transitions. Second operand 50 states. [2020-09-04 16:14:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:28,620 INFO L93 Difference]: Finished difference Result 281 states and 295 transitions. [2020-09-04 16:14:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-09-04 16:14:28,621 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 472 [2020-09-04 16:14:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:28,623 INFO L225 Difference]: With dead ends: 281 [2020-09-04 16:14:28,624 INFO L226 Difference]: Without dead ends: 275 [2020-09-04 16:14:28,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2025 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3386, Invalid=5734, Unknown=0, NotChecked=0, Total=9120 [2020-09-04 16:14:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-04 16:14:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-09-04 16:14:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-09-04 16:14:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 289 transitions. [2020-09-04 16:14:28,638 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 289 transitions. Word has length 472 [2020-09-04 16:14:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:28,638 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 289 transitions. [2020-09-04 16:14:28,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-09-04 16:14:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 289 transitions. [2020-09-04 16:14:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-09-04 16:14:28,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:28,642 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:28,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-09-04 16:14:28,642 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:28,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:28,643 INFO L82 PathProgramCache]: Analyzing trace with hash 628366185, now seen corresponding path program 46 times [2020-09-04 16:14:28,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:28,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732194097] [2020-09-04 16:14:28,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:28,645 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:28,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:28,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:31,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:33,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5313 trivial. 0 not checked. [2020-09-04 16:14:35,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732194097] [2020-09-04 16:14:35,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:35,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2020-09-04 16:14:35,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103648905] [2020-09-04 16:14:35,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-09-04 16:14:35,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:35,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-09-04 16:14:35,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=1370, Unknown=0, NotChecked=0, Total=2550 [2020-09-04 16:14:35,949 INFO L87 Difference]: Start difference. First operand 275 states and 289 transitions. Second operand 51 states. [2020-09-04 16:14:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:37,406 INFO L93 Difference]: Finished difference Result 286 states and 300 transitions. [2020-09-04 16:14:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-09-04 16:14:37,407 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 482 [2020-09-04 16:14:37,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:37,409 INFO L225 Difference]: With dead ends: 286 [2020-09-04 16:14:37,410 INFO L226 Difference]: Without dead ends: 280 [2020-09-04 16:14:37,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2116 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3530, Invalid=5976, Unknown=0, NotChecked=0, Total=9506 [2020-09-04 16:14:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-04 16:14:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-04 16:14:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-04 16:14:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 294 transitions. [2020-09-04 16:14:37,424 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 294 transitions. Word has length 482 [2020-09-04 16:14:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:37,424 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 294 transitions. [2020-09-04 16:14:37,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-09-04 16:14:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 294 transitions. [2020-09-04 16:14:37,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2020-09-04 16:14:37,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:37,428 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:37,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-09-04 16:14:37,428 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:37,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:37,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1474071107, now seen corresponding path program 47 times [2020-09-04 16:14:37,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:37,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259234805] [2020-09-04 16:14:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:37,431 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:37,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:37,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:38,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:40,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:41,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:42,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 5546 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5546 trivial. 0 not checked. [2020-09-04 16:14:45,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259234805] [2020-09-04 16:14:45,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:45,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2020-09-04 16:14:45,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286868521] [2020-09-04 16:14:45,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-09-04 16:14:45,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-09-04 16:14:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1229, Invalid=1423, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 16:14:45,159 INFO L87 Difference]: Start difference. First operand 280 states and 294 transitions. Second operand 52 states. [2020-09-04 16:14:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:46,666 INFO L93 Difference]: Finished difference Result 291 states and 305 transitions. [2020-09-04 16:14:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-09-04 16:14:46,666 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 492 [2020-09-04 16:14:46,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:46,668 INFO L225 Difference]: With dead ends: 291 [2020-09-04 16:14:46,668 INFO L226 Difference]: Without dead ends: 285 [2020-09-04 16:14:46,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3677, Invalid=6223, Unknown=0, NotChecked=0, Total=9900 [2020-09-04 16:14:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-04 16:14:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2020-09-04 16:14:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-09-04 16:14:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 299 transitions. [2020-09-04 16:14:46,683 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 299 transitions. Word has length 492 [2020-09-04 16:14:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:46,684 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 299 transitions. [2020-09-04 16:14:46,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-09-04 16:14:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 299 transitions. [2020-09-04 16:14:46,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2020-09-04 16:14:46,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:46,687 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:46,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-09-04 16:14:46,688 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:46,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:46,688 INFO L82 PathProgramCache]: Analyzing trace with hash -504610071, now seen corresponding path program 48 times [2020-09-04 16:14:46,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:46,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967549311] [2020-09-04 16:14:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:46,690 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:46,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:49,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:51,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5784 trivial. 0 not checked. [2020-09-04 16:14:54,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967549311] [2020-09-04 16:14:54,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:14:54,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2020-09-04 16:14:54,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478197058] [2020-09-04 16:14:54,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-09-04 16:14:54,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:14:54,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-09-04 16:14:54,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=1477, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 16:14:54,886 INFO L87 Difference]: Start difference. First operand 285 states and 299 transitions. Second operand 53 states. [2020-09-04 16:14:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:14:56,457 INFO L93 Difference]: Finished difference Result 296 states and 310 transitions. [2020-09-04 16:14:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-09-04 16:14:56,457 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 502 [2020-09-04 16:14:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:14:56,460 INFO L225 Difference]: With dead ends: 296 [2020-09-04 16:14:56,460 INFO L226 Difference]: Without dead ends: 290 [2020-09-04 16:14:56,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2304 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3827, Invalid=6475, Unknown=0, NotChecked=0, Total=10302 [2020-09-04 16:14:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-04 16:14:56,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2020-09-04 16:14:56,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-04 16:14:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 304 transitions. [2020-09-04 16:14:56,476 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 304 transitions. Word has length 502 [2020-09-04 16:14:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:14:56,476 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 304 transitions. [2020-09-04 16:14:56,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-09-04 16:14:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 304 transitions. [2020-09-04 16:14:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-09-04 16:14:56,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:14:56,480 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:14:56,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-09-04 16:14:56,481 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:14:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:14:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1545920835, now seen corresponding path program 49 times [2020-09-04 16:14:56,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:14:56,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215452124] [2020-09-04 16:14:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:14:56,484 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:14:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:14:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:56,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:14:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:57,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:58,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:14:59,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:14:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:01,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:02,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 6027 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6027 trivial. 0 not checked. [2020-09-04 16:15:04,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215452124] [2020-09-04 16:15:04,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:15:04,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2020-09-04 16:15:04,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739125147] [2020-09-04 16:15:04,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-09-04 16:15:04,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:15:04,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-09-04 16:15:04,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=1532, Unknown=0, NotChecked=0, Total=2862 [2020-09-04 16:15:04,995 INFO L87 Difference]: Start difference. First operand 290 states and 304 transitions. Second operand 54 states. [2020-09-04 16:15:06,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:15:06,598 INFO L93 Difference]: Finished difference Result 301 states and 315 transitions. [2020-09-04 16:15:06,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-09-04 16:15:06,599 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 512 [2020-09-04 16:15:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:15:06,601 INFO L225 Difference]: With dead ends: 301 [2020-09-04 16:15:06,601 INFO L226 Difference]: Without dead ends: 295 [2020-09-04 16:15:06,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2401 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3980, Invalid=6732, Unknown=0, NotChecked=0, Total=10712 [2020-09-04 16:15:06,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-04 16:15:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2020-09-04 16:15:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-04 16:15:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 309 transitions. [2020-09-04 16:15:06,614 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 309 transitions. Word has length 512 [2020-09-04 16:15:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:15:06,615 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 309 transitions. [2020-09-04 16:15:06,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-09-04 16:15:06,615 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 309 transitions. [2020-09-04 16:15:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2020-09-04 16:15:06,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:15:06,619 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:15:06,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-09-04 16:15:06,619 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:15:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:15:06,619 INFO L82 PathProgramCache]: Analyzing trace with hash -49939863, now seen corresponding path program 50 times [2020-09-04 16:15:06,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:15:06,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796689174] [2020-09-04 16:15:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:15:06,622 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:15:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:15:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:15:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:07,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:07,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:08,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:10,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:11,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:12,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:13,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6275 trivial. 0 not checked. [2020-09-04 16:15:15,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796689174] [2020-09-04 16:15:15,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:15:15,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2020-09-04 16:15:15,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515137979] [2020-09-04 16:15:15,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-09-04 16:15:15,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:15:15,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-09-04 16:15:15,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1382, Invalid=1588, Unknown=0, NotChecked=0, Total=2970 [2020-09-04 16:15:15,752 INFO L87 Difference]: Start difference. First operand 295 states and 309 transitions. Second operand 55 states. [2020-09-04 16:15:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:15:17,413 INFO L93 Difference]: Finished difference Result 306 states and 320 transitions. [2020-09-04 16:15:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-09-04 16:15:17,414 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 522 [2020-09-04 16:15:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:15:17,416 INFO L225 Difference]: With dead ends: 306 [2020-09-04 16:15:17,417 INFO L226 Difference]: Without dead ends: 300 [2020-09-04 16:15:17,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2500 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4136, Invalid=6994, Unknown=0, NotChecked=0, Total=11130 [2020-09-04 16:15:17,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-04 16:15:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2020-09-04 16:15:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-04 16:15:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 314 transitions. [2020-09-04 16:15:17,433 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 314 transitions. Word has length 522 [2020-09-04 16:15:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:15:17,433 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 314 transitions. [2020-09-04 16:15:17,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-09-04 16:15:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 314 transitions. [2020-09-04 16:15:17,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-09-04 16:15:17,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:15:17,437 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:15:17,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-09-04 16:15:17,438 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:15:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:15:17,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1295161277, now seen corresponding path program 51 times [2020-09-04 16:15:17,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:15:17,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109148648] [2020-09-04 16:15:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:15:17,441 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:15:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:17,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:15:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:17,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:15:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:18,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:18,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:18,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:18,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:22,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:24,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6528 trivial. 0 not checked. [2020-09-04 16:15:26,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109148648] [2020-09-04 16:15:26,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:15:26,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2020-09-04 16:15:26,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547953979] [2020-09-04 16:15:26,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-09-04 16:15:26,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:15:26,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-09-04 16:15:26,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1435, Invalid=1645, Unknown=0, NotChecked=0, Total=3080 [2020-09-04 16:15:26,970 INFO L87 Difference]: Start difference. First operand 300 states and 314 transitions. Second operand 56 states. [2020-09-04 16:15:28,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:15:28,715 INFO L93 Difference]: Finished difference Result 311 states and 325 transitions. [2020-09-04 16:15:28,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-09-04 16:15:28,716 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 532 [2020-09-04 16:15:28,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:15:28,718 INFO L225 Difference]: With dead ends: 311 [2020-09-04 16:15:28,718 INFO L226 Difference]: Without dead ends: 305 [2020-09-04 16:15:28,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2601 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4295, Invalid=7261, Unknown=0, NotChecked=0, Total=11556 [2020-09-04 16:15:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-09-04 16:15:28,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-09-04 16:15:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-04 16:15:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 319 transitions. [2020-09-04 16:15:28,733 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 319 transitions. Word has length 532 [2020-09-04 16:15:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:15:28,734 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 319 transitions. [2020-09-04 16:15:28,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-09-04 16:15:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 319 transitions. [2020-09-04 16:15:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-09-04 16:15:28,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:15:28,738 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:15:28,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-09-04 16:15:28,738 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:15:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:15:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1848984041, now seen corresponding path program 52 times [2020-09-04 16:15:28,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:15:28,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832179548] [2020-09-04 16:15:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:15:28,741 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:15:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:15:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:28,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:15:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:29,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:29,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:29,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:30,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:30,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:30,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:30,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:30,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:31,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:32,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:33,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:35,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2020-09-04 16:15:38,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832179548] [2020-09-04 16:15:38,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:15:38,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2020-09-04 16:15:38,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916172926] [2020-09-04 16:15:38,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-09-04 16:15:38,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:15:38,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-09-04 16:15:38,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1489, Invalid=1703, Unknown=0, NotChecked=0, Total=3192 [2020-09-04 16:15:38,750 INFO L87 Difference]: Start difference. First operand 305 states and 319 transitions. Second operand 57 states. [2020-09-04 16:15:40,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:15:40,594 INFO L93 Difference]: Finished difference Result 316 states and 330 transitions. [2020-09-04 16:15:40,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-04 16:15:40,594 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 542 [2020-09-04 16:15:40,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:15:40,597 INFO L225 Difference]: With dead ends: 316 [2020-09-04 16:15:40,597 INFO L226 Difference]: Without dead ends: 310 [2020-09-04 16:15:40,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2704 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4457, Invalid=7533, Unknown=0, NotChecked=0, Total=11990 [2020-09-04 16:15:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-04 16:15:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2020-09-04 16:15:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-09-04 16:15:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 324 transitions. [2020-09-04 16:15:40,612 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 324 transitions. Word has length 542 [2020-09-04 16:15:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:15:40,613 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 324 transitions. [2020-09-04 16:15:40,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-09-04 16:15:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 324 transitions. [2020-09-04 16:15:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-09-04 16:15:40,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:15:40,618 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:15:40,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-09-04 16:15:40,618 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:15:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:15:40,618 INFO L82 PathProgramCache]: Analyzing trace with hash 461512515, now seen corresponding path program 53 times [2020-09-04 16:15:40,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:15:40,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706131312] [2020-09-04 16:15:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:15:40,621 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:15:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:40,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:15:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:15:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:41,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:41,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:41,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:41,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:42,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:42,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:44,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:45,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:46,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:47,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:51,384 INFO L134 CoverageAnalysis]: Checked inductivity of 7049 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7049 trivial. 0 not checked. [2020-09-04 16:15:51,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706131312] [2020-09-04 16:15:51,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:15:51,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2020-09-04 16:15:51,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742708551] [2020-09-04 16:15:51,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-09-04 16:15:51,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:15:51,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-09-04 16:15:51,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1544, Invalid=1762, Unknown=0, NotChecked=0, Total=3306 [2020-09-04 16:15:51,387 INFO L87 Difference]: Start difference. First operand 310 states and 324 transitions. Second operand 58 states. [2020-09-04 16:15:53,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:15:53,319 INFO L93 Difference]: Finished difference Result 321 states and 335 transitions. [2020-09-04 16:15:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-04 16:15:53,320 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 552 [2020-09-04 16:15:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:15:53,322 INFO L225 Difference]: With dead ends: 321 [2020-09-04 16:15:53,323 INFO L226 Difference]: Without dead ends: 315 [2020-09-04 16:15:53,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2809 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4622, Invalid=7810, Unknown=0, NotChecked=0, Total=12432 [2020-09-04 16:15:53,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-04 16:15:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2020-09-04 16:15:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-04 16:15:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 329 transitions. [2020-09-04 16:15:53,338 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 329 transitions. Word has length 552 [2020-09-04 16:15:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:15:53,339 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 329 transitions. [2020-09-04 16:15:53,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-09-04 16:15:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 329 transitions. [2020-09-04 16:15:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2020-09-04 16:15:53,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:15:53,344 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:15:53,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-09-04 16:15:53,345 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:15:53,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:15:53,345 INFO L82 PathProgramCache]: Analyzing trace with hash -940697239, now seen corresponding path program 54 times [2020-09-04 16:15:53,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:15:53,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682145911] [2020-09-04 16:15:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:15:53,348 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:15:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:53,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:15:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:53,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:15:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:54,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:54,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:54,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:55,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:55,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:55,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:56,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:57,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:58,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:15:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:15:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7317 trivial. 0 not checked. [2020-09-04 16:16:04,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682145911] [2020-09-04 16:16:04,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:16:04,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2020-09-04 16:16:04,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963379208] [2020-09-04 16:16:04,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-09-04 16:16:04,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:16:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-09-04 16:16:04,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1600, Invalid=1822, Unknown=0, NotChecked=0, Total=3422 [2020-09-04 16:16:04,537 INFO L87 Difference]: Start difference. First operand 315 states and 329 transitions. Second operand 59 states. [2020-09-04 16:16:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:16:06,484 INFO L93 Difference]: Finished difference Result 326 states and 340 transitions. [2020-09-04 16:16:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-09-04 16:16:06,485 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 562 [2020-09-04 16:16:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:16:06,487 INFO L225 Difference]: With dead ends: 326 [2020-09-04 16:16:06,487 INFO L226 Difference]: Without dead ends: 320 [2020-09-04 16:16:06,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2916 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4790, Invalid=8092, Unknown=0, NotChecked=0, Total=12882 [2020-09-04 16:16:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-04 16:16:06,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2020-09-04 16:16:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-04 16:16:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 334 transitions. [2020-09-04 16:16:06,503 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 334 transitions. Word has length 562 [2020-09-04 16:16:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:16:06,503 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 334 transitions. [2020-09-04 16:16:06,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-09-04 16:16:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 334 transitions. [2020-09-04 16:16:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-09-04 16:16:06,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:16:06,508 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:16:06,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-09-04 16:16:06,508 INFO L427 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:16:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:16:06,509 INFO L82 PathProgramCache]: Analyzing trace with hash 183436867, now seen corresponding path program 55 times [2020-09-04 16:16:06,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:16:06,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664554959] [2020-09-04 16:16:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:16:06,511 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:16:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:16:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:16:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:07,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:07,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:07,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:08,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:08,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:08,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:09,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:12,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:13,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:14,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 7590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7590 trivial. 0 not checked. [2020-09-04 16:16:18,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664554959] [2020-09-04 16:16:18,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:16:18,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2020-09-04 16:16:18,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064164496] [2020-09-04 16:16:18,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-09-04 16:16:18,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:16:18,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-09-04 16:16:18,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1657, Invalid=1883, Unknown=0, NotChecked=0, Total=3540 [2020-09-04 16:16:18,065 INFO L87 Difference]: Start difference. First operand 320 states and 334 transitions. Second operand 60 states. [2020-09-04 16:16:20,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:16:20,060 INFO L93 Difference]: Finished difference Result 331 states and 345 transitions. [2020-09-04 16:16:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-09-04 16:16:20,061 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 572 [2020-09-04 16:16:20,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:16:20,064 INFO L225 Difference]: With dead ends: 331 [2020-09-04 16:16:20,064 INFO L226 Difference]: Without dead ends: 325 [2020-09-04 16:16:20,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3025 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4961, Invalid=8379, Unknown=0, NotChecked=0, Total=13340 [2020-09-04 16:16:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-04 16:16:20,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2020-09-04 16:16:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-09-04 16:16:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 339 transitions. [2020-09-04 16:16:20,080 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 339 transitions. Word has length 572 [2020-09-04 16:16:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:16:20,081 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 339 transitions. [2020-09-04 16:16:20,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-09-04 16:16:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 339 transitions. [2020-09-04 16:16:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-09-04 16:16:20,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:16:20,085 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:16:20,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-09-04 16:16:20,086 INFO L427 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:16:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:16:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2007269609, now seen corresponding path program 56 times [2020-09-04 16:16:20,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:16:20,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451825386] [2020-09-04 16:16:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:16:20,089 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:16:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:20,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:16:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:20,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:16:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:20,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:21,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:21,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:21,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:22,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:22,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:22,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:24,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:25,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:26,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:27,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:28,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7868 trivial. 0 not checked. [2020-09-04 16:16:32,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451825386] [2020-09-04 16:16:32,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:16:32,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2020-09-04 16:16:32,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728106659] [2020-09-04 16:16:32,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-09-04 16:16:32,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:16:32,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-09-04 16:16:32,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1715, Invalid=1945, Unknown=0, NotChecked=0, Total=3660 [2020-09-04 16:16:32,332 INFO L87 Difference]: Start difference. First operand 325 states and 339 transitions. Second operand 61 states. [2020-09-04 16:16:34,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:16:34,395 INFO L93 Difference]: Finished difference Result 336 states and 350 transitions. [2020-09-04 16:16:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-09-04 16:16:34,395 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 582 [2020-09-04 16:16:34,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:16:34,397 INFO L225 Difference]: With dead ends: 336 [2020-09-04 16:16:34,398 INFO L226 Difference]: Without dead ends: 330 [2020-09-04 16:16:34,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5135, Invalid=8671, Unknown=0, NotChecked=0, Total=13806 [2020-09-04 16:16:34,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-04 16:16:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-09-04 16:16:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-04 16:16:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 344 transitions. [2020-09-04 16:16:34,409 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 344 transitions. Word has length 582 [2020-09-04 16:16:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:16:34,410 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 344 transitions. [2020-09-04 16:16:34,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-09-04 16:16:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 344 transitions. [2020-09-04 16:16:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2020-09-04 16:16:34,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:16:34,414 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:16:34,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-09-04 16:16:34,414 INFO L427 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:16:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:16:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1790975299, now seen corresponding path program 57 times [2020-09-04 16:16:34,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:16:34,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996111656] [2020-09-04 16:16:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:16:34,416 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:16:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:34,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:16:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:16:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:35,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:35,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:36,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:36,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:36,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:37,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:37,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:37,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:38,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:39,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:40,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:41,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:42,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:43,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:43,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:43,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 8151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2020-09-04 16:16:47,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996111656] [2020-09-04 16:16:47,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:16:47,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2020-09-04 16:16:47,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078000227] [2020-09-04 16:16:47,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-09-04 16:16:47,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:16:47,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-09-04 16:16:47,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1774, Invalid=2008, Unknown=0, NotChecked=0, Total=3782 [2020-09-04 16:16:47,020 INFO L87 Difference]: Start difference. First operand 330 states and 344 transitions. Second operand 62 states. [2020-09-04 16:16:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:16:49,174 INFO L93 Difference]: Finished difference Result 341 states and 355 transitions. [2020-09-04 16:16:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-09-04 16:16:49,175 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 592 [2020-09-04 16:16:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:16:49,179 INFO L225 Difference]: With dead ends: 341 [2020-09-04 16:16:49,179 INFO L226 Difference]: Without dead ends: 335 [2020-09-04 16:16:49,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3249 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=5312, Invalid=8968, Unknown=0, NotChecked=0, Total=14280 [2020-09-04 16:16:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-04 16:16:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2020-09-04 16:16:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-04 16:16:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 349 transitions. [2020-09-04 16:16:49,193 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 349 transitions. Word has length 592 [2020-09-04 16:16:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:16:49,194 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 349 transitions. [2020-09-04 16:16:49,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-09-04 16:16:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 349 transitions. [2020-09-04 16:16:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2020-09-04 16:16:49,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:16:49,200 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:16:49,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-09-04 16:16:49,200 INFO L427 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:16:49,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:16:49,201 INFO L82 PathProgramCache]: Analyzing trace with hash 97286249, now seen corresponding path program 58 times [2020-09-04 16:16:49,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:16:49,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883255068] [2020-09-04 16:16:49,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:16:49,204 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:16:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:16:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:49,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:16:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:49,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:50,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:50,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:51,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:51,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:51,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:51,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:52,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:52,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:52,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:53,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:53,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:53,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:53,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:53,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:54,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:56,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:57,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:16:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:16:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8439 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8439 trivial. 0 not checked. [2020-09-04 16:17:03,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883255068] [2020-09-04 16:17:03,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:17:03,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-09-04 16:17:03,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615054708] [2020-09-04 16:17:03,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-09-04 16:17:03,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:17:03,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-09-04 16:17:03,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1834, Invalid=2072, Unknown=0, NotChecked=0, Total=3906 [2020-09-04 16:17:03,663 INFO L87 Difference]: Start difference. First operand 335 states and 349 transitions. Second operand 63 states. [2020-09-04 16:17:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:17:05,866 INFO L93 Difference]: Finished difference Result 346 states and 360 transitions. [2020-09-04 16:17:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-04 16:17:05,867 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 602 [2020-09-04 16:17:05,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:17:05,870 INFO L225 Difference]: With dead ends: 346 [2020-09-04 16:17:05,871 INFO L226 Difference]: Without dead ends: 340 [2020-09-04 16:17:05,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3364 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5492, Invalid=9270, Unknown=0, NotChecked=0, Total=14762 [2020-09-04 16:17:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-04 16:17:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2020-09-04 16:17:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-04 16:17:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 354 transitions. [2020-09-04 16:17:05,888 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 354 transitions. Word has length 602 [2020-09-04 16:17:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:17:05,888 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 354 transitions. [2020-09-04 16:17:05,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-09-04 16:17:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 354 transitions. [2020-09-04 16:17:05,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-09-04 16:17:05,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:17:05,894 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:17:05,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-09-04 16:17:05,894 INFO L427 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:17:05,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:17:05,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1503749187, now seen corresponding path program 59 times [2020-09-04 16:17:05,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:17:05,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926945914] [2020-09-04 16:17:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:17:05,898 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:17:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:06,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:17:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:17:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:06,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:06,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:07,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:07,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:07,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:07,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:08,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:09,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:09,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:09,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:09,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:10,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:11,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:12,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8732 trivial. 0 not checked. [2020-09-04 16:17:19,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926945914] [2020-09-04 16:17:19,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:17:19,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2020-09-04 16:17:19,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668933176] [2020-09-04 16:17:19,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-09-04 16:17:19,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:17:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-09-04 16:17:19,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1895, Invalid=2137, Unknown=0, NotChecked=0, Total=4032 [2020-09-04 16:17:19,931 INFO L87 Difference]: Start difference. First operand 340 states and 354 transitions. Second operand 64 states. [2020-09-04 16:17:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:17:22,251 INFO L93 Difference]: Finished difference Result 351 states and 365 transitions. [2020-09-04 16:17:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-09-04 16:17:22,252 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 612 [2020-09-04 16:17:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:17:22,254 INFO L225 Difference]: With dead ends: 351 [2020-09-04 16:17:22,254 INFO L226 Difference]: Without dead ends: 345 [2020-09-04 16:17:22,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3481 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5675, Invalid=9577, Unknown=0, NotChecked=0, Total=15252 [2020-09-04 16:17:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-04 16:17:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2020-09-04 16:17:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-04 16:17:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 359 transitions. [2020-09-04 16:17:22,265 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 359 transitions. Word has length 612 [2020-09-04 16:17:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:17:22,266 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 359 transitions. [2020-09-04 16:17:22,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-09-04 16:17:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 359 transitions. [2020-09-04 16:17:22,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2020-09-04 16:17:22,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:17:22,270 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:17:22,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-09-04 16:17:22,270 INFO L427 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:17:22,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:17:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1440350185, now seen corresponding path program 60 times [2020-09-04 16:17:22,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:17:22,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409844280] [2020-09-04 16:17:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:17:22,272 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:17:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:22,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:17:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:17:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:23,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:23,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:24,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:24,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:24,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:24,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:25,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:25,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:25,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:25,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:26,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:26,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:26,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:26,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:27,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:27,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:27,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:27,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:27,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:29,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9030 trivial. 0 not checked. [2020-09-04 16:17:37,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409844280] [2020-09-04 16:17:37,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:17:37,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2020-09-04 16:17:37,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229417655] [2020-09-04 16:17:37,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-09-04 16:17:37,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:17:37,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-09-04 16:17:37,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1957, Invalid=2203, Unknown=0, NotChecked=0, Total=4160 [2020-09-04 16:17:37,355 INFO L87 Difference]: Start difference. First operand 345 states and 359 transitions. Second operand 65 states. [2020-09-04 16:17:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:17:39,705 INFO L93 Difference]: Finished difference Result 356 states and 370 transitions. [2020-09-04 16:17:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-09-04 16:17:39,706 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 622 [2020-09-04 16:17:39,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:17:39,709 INFO L225 Difference]: With dead ends: 356 [2020-09-04 16:17:39,709 INFO L226 Difference]: Without dead ends: 350 [2020-09-04 16:17:39,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3600 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=5861, Invalid=9889, Unknown=0, NotChecked=0, Total=15750 [2020-09-04 16:17:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-04 16:17:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2020-09-04 16:17:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-04 16:17:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 364 transitions. [2020-09-04 16:17:39,726 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 364 transitions. Word has length 622 [2020-09-04 16:17:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:17:39,726 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 364 transitions. [2020-09-04 16:17:39,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-09-04 16:17:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 364 transitions. [2020-09-04 16:17:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2020-09-04 16:17:39,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:17:39,730 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:17:39,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-09-04 16:17:39,730 INFO L427 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:17:39,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:17:39,730 INFO L82 PathProgramCache]: Analyzing trace with hash -348202173, now seen corresponding path program 61 times [2020-09-04 16:17:39,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:17:39,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556272566] [2020-09-04 16:17:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:17:39,733 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:17:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:40,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:17:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:40,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:17:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:40,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:41,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:41,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:42,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:42,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:43,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:43,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:43,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:43,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:43,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:44,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:44,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:44,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:45,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:46,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:48,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:49,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:50,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9333 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9333 trivial. 0 not checked. [2020-09-04 16:17:55,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556272566] [2020-09-04 16:17:55,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:17:55,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2020-09-04 16:17:55,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822515151] [2020-09-04 16:17:55,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-09-04 16:17:55,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:17:55,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-09-04 16:17:55,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2020, Invalid=2270, Unknown=0, NotChecked=0, Total=4290 [2020-09-04 16:17:55,596 INFO L87 Difference]: Start difference. First operand 350 states and 364 transitions. Second operand 66 states. [2020-09-04 16:17:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:17:58,075 INFO L93 Difference]: Finished difference Result 361 states and 375 transitions. [2020-09-04 16:17:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-09-04 16:17:58,076 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 632 [2020-09-04 16:17:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:17:58,078 INFO L225 Difference]: With dead ends: 361 [2020-09-04 16:17:58,078 INFO L226 Difference]: Without dead ends: 355 [2020-09-04 16:17:58,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3721 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=6050, Invalid=10206, Unknown=0, NotChecked=0, Total=16256 [2020-09-04 16:17:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-04 16:17:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2020-09-04 16:17:58,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-04 16:17:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 369 transitions. [2020-09-04 16:17:58,096 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 369 transitions. Word has length 632 [2020-09-04 16:17:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:17:58,097 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 369 transitions. [2020-09-04 16:17:58,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-09-04 16:17:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 369 transitions. [2020-09-04 16:17:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2020-09-04 16:17:58,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:17:58,103 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:17:58,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-09-04 16:17:58,104 INFO L427 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:17:58,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:17:58,104 INFO L82 PathProgramCache]: Analyzing trace with hash -431941783, now seen corresponding path program 62 times [2020-09-04 16:17:58,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:17:58,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096844955] [2020-09-04 16:17:58,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:17:58,107 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:17:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:58,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:17:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:17:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:59,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:59,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:17:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:17:59,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:00,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:01,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:01,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:02,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:02,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:02,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:03,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:04,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:04,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:05,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:05,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:05,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:08,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:09,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9641 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9641 trivial. 0 not checked. [2020-09-04 16:18:14,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096844955] [2020-09-04 16:18:14,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:18:14,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2020-09-04 16:18:14,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388698662] [2020-09-04 16:18:14,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-09-04 16:18:14,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:18:14,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-09-04 16:18:14,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2084, Invalid=2338, Unknown=0, NotChecked=0, Total=4422 [2020-09-04 16:18:14,913 INFO L87 Difference]: Start difference. First operand 355 states and 369 transitions. Second operand 67 states. [2020-09-04 16:18:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:18:17,429 INFO L93 Difference]: Finished difference Result 366 states and 380 transitions. [2020-09-04 16:18:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-09-04 16:18:17,430 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 642 [2020-09-04 16:18:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:18:17,434 INFO L225 Difference]: With dead ends: 366 [2020-09-04 16:18:17,434 INFO L226 Difference]: Without dead ends: 360 [2020-09-04 16:18:17,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3844 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=6242, Invalid=10528, Unknown=0, NotChecked=0, Total=16770 [2020-09-04 16:18:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-04 16:18:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-09-04 16:18:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-04 16:18:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 374 transitions. [2020-09-04 16:18:17,452 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 374 transitions. Word has length 642 [2020-09-04 16:18:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:18:17,453 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 374 transitions. [2020-09-04 16:18:17,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-09-04 16:18:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 374 transitions. [2020-09-04 16:18:17,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2020-09-04 16:18:17,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:18:17,459 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:18:17,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-09-04 16:18:17,460 INFO L427 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:18:17,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:18:17,460 INFO L82 PathProgramCache]: Analyzing trace with hash -398163389, now seen corresponding path program 63 times [2020-09-04 16:18:17,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:18:17,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880307224] [2020-09-04 16:18:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:18:17,464 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:18:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:17,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:18:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:17,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:18:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:18,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:18,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:19,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:19,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:19,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:20,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:20,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:20,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:21,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:21,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:21,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:22,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:22,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:22,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:24,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:28,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9954 trivial. 0 not checked. [2020-09-04 16:18:34,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880307224] [2020-09-04 16:18:34,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:18:34,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2020-09-04 16:18:34,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892296616] [2020-09-04 16:18:34,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-09-04 16:18:34,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:18:34,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-09-04 16:18:34,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2149, Invalid=2407, Unknown=0, NotChecked=0, Total=4556 [2020-09-04 16:18:34,187 INFO L87 Difference]: Start difference. First operand 360 states and 374 transitions. Second operand 68 states. [2020-09-04 16:18:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:18:36,787 INFO L93 Difference]: Finished difference Result 371 states and 385 transitions. [2020-09-04 16:18:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-09-04 16:18:36,788 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 652 [2020-09-04 16:18:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:18:36,791 INFO L225 Difference]: With dead ends: 371 [2020-09-04 16:18:36,791 INFO L226 Difference]: Without dead ends: 365 [2020-09-04 16:18:36,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3969 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=6437, Invalid=10855, Unknown=0, NotChecked=0, Total=17292 [2020-09-04 16:18:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-04 16:18:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2020-09-04 16:18:36,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-04 16:18:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 379 transitions. [2020-09-04 16:18:36,807 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 379 transitions. Word has length 652 [2020-09-04 16:18:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:18:36,808 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 379 transitions. [2020-09-04 16:18:36,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-09-04 16:18:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 379 transitions. [2020-09-04 16:18:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-09-04 16:18:36,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:18:36,812 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:18:36,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-09-04 16:18:36,812 INFO L427 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:18:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:18:36,813 INFO L82 PathProgramCache]: Analyzing trace with hash 276152041, now seen corresponding path program 64 times [2020-09-04 16:18:36,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:18:36,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875247554] [2020-09-04 16:18:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:18:36,815 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:18:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:37,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:18:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:37,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:18:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:37,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:38,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:38,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:38,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:39,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:39,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:39,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:39,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:40,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:40,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:41,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:42,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:42,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:42,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:42,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:43,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:43,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:43,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:43,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:44,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:45,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:47,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10272 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10272 trivial. 0 not checked. [2020-09-04 16:18:54,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875247554] [2020-09-04 16:18:54,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:18:54,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2020-09-04 16:18:54,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828196303] [2020-09-04 16:18:54,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-09-04 16:18:54,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:18:54,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-09-04 16:18:54,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2215, Invalid=2477, Unknown=0, NotChecked=0, Total=4692 [2020-09-04 16:18:54,132 INFO L87 Difference]: Start difference. First operand 365 states and 379 transitions. Second operand 69 states. [2020-09-04 16:18:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:18:56,824 INFO L93 Difference]: Finished difference Result 376 states and 390 transitions. [2020-09-04 16:18:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-09-04 16:18:56,825 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 662 [2020-09-04 16:18:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:18:56,828 INFO L225 Difference]: With dead ends: 376 [2020-09-04 16:18:56,828 INFO L226 Difference]: Without dead ends: 370 [2020-09-04 16:18:56,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4096 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=6635, Invalid=11187, Unknown=0, NotChecked=0, Total=17822 [2020-09-04 16:18:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-09-04 16:18:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-09-04 16:18:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-04 16:18:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 384 transitions. [2020-09-04 16:18:56,845 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 384 transitions. Word has length 662 [2020-09-04 16:18:56,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:18:56,845 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 384 transitions. [2020-09-04 16:18:56,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-09-04 16:18:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 384 transitions. [2020-09-04 16:18:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2020-09-04 16:18:56,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:18:56,852 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:18:56,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-09-04 16:18:56,852 INFO L427 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:18:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:18:56,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1906419389, now seen corresponding path program 65 times [2020-09-04 16:18:56,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:18:56,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786033596] [2020-09-04 16:18:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:18:56,855 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:18:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:57,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:18:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:57,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:18:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:57,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:57,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:58,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:59,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:59,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:18:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:18:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:00,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:00,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:01,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:02,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:02,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:02,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:02,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:03,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:04,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:04,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:04,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:05,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:07,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 10595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10595 trivial. 0 not checked. [2020-09-04 16:19:14,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786033596] [2020-09-04 16:19:14,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:19:14,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2020-09-04 16:19:14,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619504461] [2020-09-04 16:19:14,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-09-04 16:19:14,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:19:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-09-04 16:19:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2282, Invalid=2548, Unknown=0, NotChecked=0, Total=4830 [2020-09-04 16:19:14,594 INFO L87 Difference]: Start difference. First operand 370 states and 384 transitions. Second operand 70 states. [2020-09-04 16:19:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:19:17,430 INFO L93 Difference]: Finished difference Result 381 states and 395 transitions. [2020-09-04 16:19:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-09-04 16:19:17,431 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 672 [2020-09-04 16:19:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:19:17,434 INFO L225 Difference]: With dead ends: 381 [2020-09-04 16:19:17,434 INFO L226 Difference]: Without dead ends: 375 [2020-09-04 16:19:17,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4225 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=6836, Invalid=11524, Unknown=0, NotChecked=0, Total=18360 [2020-09-04 16:19:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-04 16:19:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2020-09-04 16:19:17,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-04 16:19:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 389 transitions. [2020-09-04 16:19:17,453 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 389 transitions. Word has length 672 [2020-09-04 16:19:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:19:17,454 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 389 transitions. [2020-09-04 16:19:17,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-09-04 16:19:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 389 transitions. [2020-09-04 16:19:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-09-04 16:19:17,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:19:17,460 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:19:17,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-09-04 16:19:17,460 INFO L427 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:19:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:19:17,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1223423593, now seen corresponding path program 66 times [2020-09-04 16:19:17,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:19:17,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985848026] [2020-09-04 16:19:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:19:17,464 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:19:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:17,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:19:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:19:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:18,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:18,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:19,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:19,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:20,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:20,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:21,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:21,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:21,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:22,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:22,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:24,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:24,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:24,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:25,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:25,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:25,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:25,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:27,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:28,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:29,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:30,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 10923 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10923 trivial. 0 not checked. [2020-09-04 16:19:35,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985848026] [2020-09-04 16:19:35,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:19:35,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2020-09-04 16:19:35,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392430644] [2020-09-04 16:19:35,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-09-04 16:19:35,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:19:35,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-09-04 16:19:35,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2350, Invalid=2620, Unknown=0, NotChecked=0, Total=4970 [2020-09-04 16:19:35,966 INFO L87 Difference]: Start difference. First operand 375 states and 389 transitions. Second operand 71 states. [2020-09-04 16:19:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:19:38,897 INFO L93 Difference]: Finished difference Result 386 states and 400 transitions. [2020-09-04 16:19:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-09-04 16:19:38,898 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 682 [2020-09-04 16:19:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:19:38,901 INFO L225 Difference]: With dead ends: 386 [2020-09-04 16:19:38,901 INFO L226 Difference]: Without dead ends: 380 [2020-09-04 16:19:38,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4356 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=7040, Invalid=11866, Unknown=0, NotChecked=0, Total=18906 [2020-09-04 16:19:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-04 16:19:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2020-09-04 16:19:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-04 16:19:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 394 transitions. [2020-09-04 16:19:38,915 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 394 transitions. Word has length 682 [2020-09-04 16:19:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:19:38,915 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 394 transitions. [2020-09-04 16:19:38,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-09-04 16:19:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 394 transitions. [2020-09-04 16:19:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2020-09-04 16:19:38,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:19:38,919 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:19:38,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-09-04 16:19:38,919 INFO L427 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:19:38,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:19:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1345871939, now seen corresponding path program 67 times [2020-09-04 16:19:38,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:19:38,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313966914] [2020-09-04 16:19:38,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:19:38,922 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:19:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:39,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:19:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:39,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:19:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:39,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:39,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:40,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:40,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:41,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:41,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:41,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:42,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:43,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:43,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:43,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:44,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:44,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:44,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:44,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:45,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:45,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:45,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:48,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:50,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:52,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:19:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:19:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11256 trivial. 0 not checked. [2020-09-04 16:19:58,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313966914] [2020-09-04 16:19:58,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:19:58,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2020-09-04 16:19:58,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455536922] [2020-09-04 16:19:58,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-09-04 16:19:58,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:19:58,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-09-04 16:19:58,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2419, Invalid=2693, Unknown=0, NotChecked=0, Total=5112 [2020-09-04 16:19:58,146 INFO L87 Difference]: Start difference. First operand 380 states and 394 transitions. Second operand 72 states. [2020-09-04 16:20:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:20:01,168 INFO L93 Difference]: Finished difference Result 391 states and 405 transitions. [2020-09-04 16:20:01,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-09-04 16:20:01,169 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 692 [2020-09-04 16:20:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:20:01,171 INFO L225 Difference]: With dead ends: 391 [2020-09-04 16:20:01,171 INFO L226 Difference]: Without dead ends: 385 [2020-09-04 16:20:01,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4489 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=7247, Invalid=12213, Unknown=0, NotChecked=0, Total=19460 [2020-09-04 16:20:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-04 16:20:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2020-09-04 16:20:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-04 16:20:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 399 transitions. [2020-09-04 16:20:01,187 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 399 transitions. Word has length 692 [2020-09-04 16:20:01,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:20:01,187 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 399 transitions. [2020-09-04 16:20:01,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-09-04 16:20:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 399 transitions. [2020-09-04 16:20:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-09-04 16:20:01,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:20:01,192 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:20:01,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-09-04 16:20:01,192 INFO L427 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:20:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:20:01,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1595391465, now seen corresponding path program 68 times [2020-09-04 16:20:01,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:20:01,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577648660] [2020-09-04 16:20:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:20:01,195 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:20:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:01,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:20:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:20:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:02,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:03,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:03,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:03,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:04,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:05,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:05,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:06,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:06,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:07,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:07,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:08,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:08,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:09,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:09,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:09,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:10,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:12,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:13,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:14,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:14,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:15,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11594 trivial. 0 not checked. [2020-09-04 16:20:22,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577648660] [2020-09-04 16:20:22,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:20:22,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2020-09-04 16:20:22,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395931467] [2020-09-04 16:20:22,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-09-04 16:20:22,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:20:22,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-09-04 16:20:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2489, Invalid=2767, Unknown=0, NotChecked=0, Total=5256 [2020-09-04 16:20:22,027 INFO L87 Difference]: Start difference. First operand 385 states and 399 transitions. Second operand 73 states. [2020-09-04 16:20:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:20:25,126 INFO L93 Difference]: Finished difference Result 396 states and 410 transitions. [2020-09-04 16:20:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-09-04 16:20:25,127 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 702 [2020-09-04 16:20:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:20:25,130 INFO L225 Difference]: With dead ends: 396 [2020-09-04 16:20:25,130 INFO L226 Difference]: Without dead ends: 390 [2020-09-04 16:20:25,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4624 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=7457, Invalid=12565, Unknown=0, NotChecked=0, Total=20022 [2020-09-04 16:20:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-04 16:20:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2020-09-04 16:20:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-04 16:20:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 404 transitions. [2020-09-04 16:20:25,148 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 404 transitions. Word has length 702 [2020-09-04 16:20:25,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:20:25,149 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 404 transitions. [2020-09-04 16:20:25,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-09-04 16:20:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 404 transitions. [2020-09-04 16:20:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-09-04 16:20:25,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:20:25,155 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:20:25,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-09-04 16:20:25,156 INFO L427 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:20:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:20:25,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1786865853, now seen corresponding path program 69 times [2020-09-04 16:20:25,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:20:25,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992595840] [2020-09-04 16:20:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:20:25,159 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:20:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:20:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:20:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:25,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:27,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:28,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:28,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:28,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:29,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:29,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:29,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:30,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:30,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:31,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:31,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:32,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:32,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:32,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:33,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:33,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:33,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:33,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:34,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:34,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:34,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:34,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:36,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:39,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:39,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:39,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:39,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11937 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11937 trivial. 0 not checked. [2020-09-04 16:20:47,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992595840] [2020-09-04 16:20:47,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:20:47,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2020-09-04 16:20:47,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851095152] [2020-09-04 16:20:47,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-09-04 16:20:47,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:20:47,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-09-04 16:20:47,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2560, Invalid=2842, Unknown=0, NotChecked=0, Total=5402 [2020-09-04 16:20:47,729 INFO L87 Difference]: Start difference. First operand 390 states and 404 transitions. Second operand 74 states. [2020-09-04 16:20:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:20:51,130 INFO L93 Difference]: Finished difference Result 401 states and 415 transitions. [2020-09-04 16:20:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-09-04 16:20:51,131 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 712 [2020-09-04 16:20:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:20:51,134 INFO L225 Difference]: With dead ends: 401 [2020-09-04 16:20:51,135 INFO L226 Difference]: Without dead ends: 395 [2020-09-04 16:20:51,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4761 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=7670, Invalid=12922, Unknown=0, NotChecked=0, Total=20592 [2020-09-04 16:20:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-04 16:20:51,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2020-09-04 16:20:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-04 16:20:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 409 transitions. [2020-09-04 16:20:51,154 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 409 transitions. Word has length 712 [2020-09-04 16:20:51,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:20:51,155 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 409 transitions. [2020-09-04 16:20:51,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-09-04 16:20:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 409 transitions. [2020-09-04 16:20:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2020-09-04 16:20:51,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:20:51,162 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:20:51,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-09-04 16:20:51,162 INFO L427 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:20:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:20:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1116924567, now seen corresponding path program 70 times [2020-09-04 16:20:51,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:20:51,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984929547] [2020-09-04 16:20:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:20:51,166 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:20:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:51,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:20:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:51,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:20:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:53,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:53,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:54,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:54,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:55,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:56,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:56,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:56,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:57,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:57,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:57,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:58,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:58,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:58,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:59,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:59,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:20:59,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:20:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:00,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:00,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:01,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:02,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:02,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:02,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:02,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:03,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:05,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12285 trivial. 0 not checked. [2020-09-04 16:21:15,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984929547] [2020-09-04 16:21:15,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:21:15,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2020-09-04 16:21:15,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595160867] [2020-09-04 16:21:15,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-09-04 16:21:15,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:21:15,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-09-04 16:21:15,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2632, Invalid=2918, Unknown=0, NotChecked=0, Total=5550 [2020-09-04 16:21:15,440 INFO L87 Difference]: Start difference. First operand 395 states and 409 transitions. Second operand 75 states. [2020-09-04 16:21:18,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:21:18,831 INFO L93 Difference]: Finished difference Result 406 states and 420 transitions. [2020-09-04 16:21:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-09-04 16:21:18,832 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 722 [2020-09-04 16:21:18,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:21:18,835 INFO L225 Difference]: With dead ends: 406 [2020-09-04 16:21:18,835 INFO L226 Difference]: Without dead ends: 400 [2020-09-04 16:21:18,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4900 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=7886, Invalid=13284, Unknown=0, NotChecked=0, Total=21170 [2020-09-04 16:21:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-09-04 16:21:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2020-09-04 16:21:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-04 16:21:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 414 transitions. [2020-09-04 16:21:18,853 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 414 transitions. Word has length 722 [2020-09-04 16:21:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:21:18,854 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 414 transitions. [2020-09-04 16:21:18,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-09-04 16:21:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 414 transitions. [2020-09-04 16:21:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-09-04 16:21:18,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:21:18,863 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:21:18,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-09-04 16:21:18,864 INFO L427 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:21:18,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:21:18,864 INFO L82 PathProgramCache]: Analyzing trace with hash 2061303363, now seen corresponding path program 71 times [2020-09-04 16:21:18,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:21:18,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154202194] [2020-09-04 16:21:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:21:18,868 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:21:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:21:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:21:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:19,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:20,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:20,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:21,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:21,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:22,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:22,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:22,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:23,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:24,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:24,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:24,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:25,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:26,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:26,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:26,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:26,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:27,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:27,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:28,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:29,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:29,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:29,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:29,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:29,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:30,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:30,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:30,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:31,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:31,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:31,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:33,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:35,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:36,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 12638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12638 trivial. 0 not checked. [2020-09-04 16:21:45,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154202194] [2020-09-04 16:21:45,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:21:45,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2020-09-04 16:21:45,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302873571] [2020-09-04 16:21:45,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-09-04 16:21:45,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:21:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-09-04 16:21:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2705, Invalid=2995, Unknown=0, NotChecked=0, Total=5700 [2020-09-04 16:21:45,800 INFO L87 Difference]: Start difference. First operand 400 states and 414 transitions. Second operand 76 states. [2020-09-04 16:21:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:21:49,441 INFO L93 Difference]: Finished difference Result 411 states and 425 transitions. [2020-09-04 16:21:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-09-04 16:21:49,442 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 732 [2020-09-04 16:21:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:21:49,445 INFO L225 Difference]: With dead ends: 411 [2020-09-04 16:21:49,445 INFO L226 Difference]: Without dead ends: 405 [2020-09-04 16:21:49,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5041 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=8105, Invalid=13651, Unknown=0, NotChecked=0, Total=21756 [2020-09-04 16:21:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-09-04 16:21:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2020-09-04 16:21:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-04 16:21:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 419 transitions. [2020-09-04 16:21:49,466 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 419 transitions. Word has length 732 [2020-09-04 16:21:49,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:21:49,467 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 419 transitions. [2020-09-04 16:21:49,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-09-04 16:21:49,467 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 419 transitions. [2020-09-04 16:21:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2020-09-04 16:21:49,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:21:49,476 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:21:49,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-09-04 16:21:49,476 INFO L427 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:21:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:21:49,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1453327127, now seen corresponding path program 72 times [2020-09-04 16:21:49,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:21:49,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378885249] [2020-09-04 16:21:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:21:49,481 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:21:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:49,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:21:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:49,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:21:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:50,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:51,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:52,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:52,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:53,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:53,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:54,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:54,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:55,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:55,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:55,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:56,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:57,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:57,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:58,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:58,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:21:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:21:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:00,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:00,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:00,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:00,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:01,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:01,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:02,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:02,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:02,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:02,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:02,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:03,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:04,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:04,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:04,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:05,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:06,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:07,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:07,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:07,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:07,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:15,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12996 trivial. 0 not checked. [2020-09-04 16:22:15,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378885249] [2020-09-04 16:22:15,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:22:15,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2020-09-04 16:22:15,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452003450] [2020-09-04 16:22:15,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-09-04 16:22:15,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:22:15,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-09-04 16:22:15,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=3073, Unknown=0, NotChecked=0, Total=5852 [2020-09-04 16:22:15,999 INFO L87 Difference]: Start difference. First operand 405 states and 419 transitions. Second operand 77 states. [2020-09-04 16:22:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:22:19,419 INFO L93 Difference]: Finished difference Result 416 states and 430 transitions. [2020-09-04 16:22:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-09-04 16:22:19,420 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 742 [2020-09-04 16:22:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:22:19,423 INFO L225 Difference]: With dead ends: 416 [2020-09-04 16:22:19,423 INFO L226 Difference]: Without dead ends: 410 [2020-09-04 16:22:19,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5184 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=8327, Invalid=14023, Unknown=0, NotChecked=0, Total=22350 [2020-09-04 16:22:19,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-04 16:22:19,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2020-09-04 16:22:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-04 16:22:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 424 transitions. [2020-09-04 16:22:19,439 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 424 transitions. Word has length 742 [2020-09-04 16:22:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:22:19,440 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 424 transitions. [2020-09-04 16:22:19,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-09-04 16:22:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 424 transitions. [2020-09-04 16:22:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-09-04 16:22:19,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:22:19,445 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:22:19,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-09-04 16:22:19,445 INFO L427 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:22:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:22:19,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1845521085, now seen corresponding path program 73 times [2020-09-04 16:22:19,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:22:19,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220254096] [2020-09-04 16:22:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:22:19,448 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:22:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:22:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:22:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:20,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:20,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:21,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:21,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:22,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:23,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:23,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:25,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:25,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:26,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:26,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:27,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:27,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:27,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:27,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:28,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:28,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:29,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:29,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:30,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:31,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:31,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:31,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:33,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:35,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 13359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13359 trivial. 0 not checked. [2020-09-04 16:22:44,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220254096] [2020-09-04 16:22:44,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:22:44,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2020-09-04 16:22:44,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489826897] [2020-09-04 16:22:44,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-09-04 16:22:44,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:22:44,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-09-04 16:22:44,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2854, Invalid=3152, Unknown=0, NotChecked=0, Total=6006 [2020-09-04 16:22:44,037 INFO L87 Difference]: Start difference. First operand 410 states and 424 transitions. Second operand 78 states. [2020-09-04 16:22:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:22:47,671 INFO L93 Difference]: Finished difference Result 421 states and 435 transitions. [2020-09-04 16:22:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-09-04 16:22:47,672 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 752 [2020-09-04 16:22:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:22:47,675 INFO L225 Difference]: With dead ends: 421 [2020-09-04 16:22:47,675 INFO L226 Difference]: Without dead ends: 415 [2020-09-04 16:22:47,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5329 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=8552, Invalid=14400, Unknown=0, NotChecked=0, Total=22952 [2020-09-04 16:22:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-09-04 16:22:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-09-04 16:22:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-09-04 16:22:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 429 transitions. [2020-09-04 16:22:47,692 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 429 transitions. Word has length 752 [2020-09-04 16:22:47,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:22:47,692 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 429 transitions. [2020-09-04 16:22:47,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-09-04 16:22:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 429 transitions. [2020-09-04 16:22:47,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2020-09-04 16:22:47,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:22:47,697 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:22:47,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-09-04 16:22:47,697 INFO L427 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:22:47,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:22:47,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2090568599, now seen corresponding path program 74 times [2020-09-04 16:22:47,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:22:47,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246066756] [2020-09-04 16:22:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:22:47,701 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:22:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:22:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:48,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:22:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:48,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:49,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:50,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:50,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:51,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:51,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:52,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:52,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:52,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:53,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:53,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:54,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:54,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:55,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:56,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:56,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:57,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:57,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:57,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:57,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:58,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:58,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:22:59,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:22:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:00,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:00,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:00,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:00,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:01,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:03,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:04,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 13727 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13727 trivial. 0 not checked. [2020-09-04 16:23:13,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246066756] [2020-09-04 16:23:13,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:23:13,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2020-09-04 16:23:13,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106117516] [2020-09-04 16:23:13,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-09-04 16:23:13,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:23:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-09-04 16:23:13,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2930, Invalid=3232, Unknown=0, NotChecked=0, Total=6162 [2020-09-04 16:23:13,075 INFO L87 Difference]: Start difference. First operand 415 states and 429 transitions. Second operand 79 states. [2020-09-04 16:23:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:23:16,806 INFO L93 Difference]: Finished difference Result 426 states and 440 transitions. [2020-09-04 16:23:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-09-04 16:23:16,807 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 762 [2020-09-04 16:23:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:23:16,810 INFO L225 Difference]: With dead ends: 426 [2020-09-04 16:23:16,810 INFO L226 Difference]: Without dead ends: 420 [2020-09-04 16:23:16,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5476 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=8780, Invalid=14782, Unknown=0, NotChecked=0, Total=23562 [2020-09-04 16:23:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-04 16:23:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2020-09-04 16:23:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-04 16:23:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 434 transitions. [2020-09-04 16:23:16,826 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 434 transitions. Word has length 762 [2020-09-04 16:23:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:23:16,826 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 434 transitions. [2020-09-04 16:23:16,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-09-04 16:23:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 434 transitions. [2020-09-04 16:23:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2020-09-04 16:23:16,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:23:16,831 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:23:16,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-09-04 16:23:16,832 INFO L427 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:23:16,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:23:16,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1584243645, now seen corresponding path program 75 times [2020-09-04 16:23:16,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:23:16,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580409538] [2020-09-04 16:23:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:23:16,834 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:23:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:17,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:23:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:23:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:18,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:18,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:19,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:20,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:20,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:21,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:21,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:22,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:22,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:23,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:24,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:24,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:25,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:26,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:26,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:27,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:28,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:31,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:32,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:33,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:34,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14100 trivial. 0 not checked. [2020-09-04 16:23:42,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580409538] [2020-09-04 16:23:42,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:23:42,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2020-09-04 16:23:42,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957389934] [2020-09-04 16:23:42,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-09-04 16:23:42,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:23:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-09-04 16:23:42,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3007, Invalid=3313, Unknown=0, NotChecked=0, Total=6320 [2020-09-04 16:23:42,740 INFO L87 Difference]: Start difference. First operand 420 states and 434 transitions. Second operand 80 states. [2020-09-04 16:23:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:23:46,590 INFO L93 Difference]: Finished difference Result 431 states and 445 transitions. [2020-09-04 16:23:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-09-04 16:23:46,592 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 772 [2020-09-04 16:23:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:23:46,595 INFO L225 Difference]: With dead ends: 431 [2020-09-04 16:23:46,595 INFO L226 Difference]: Without dead ends: 425 [2020-09-04 16:23:46,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5625 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=9011, Invalid=15169, Unknown=0, NotChecked=0, Total=24180 [2020-09-04 16:23:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-09-04 16:23:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2020-09-04 16:23:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-04 16:23:46,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 439 transitions. [2020-09-04 16:23:46,614 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 439 transitions. Word has length 772 [2020-09-04 16:23:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:23:46,615 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 439 transitions. [2020-09-04 16:23:46,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-09-04 16:23:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 439 transitions. [2020-09-04 16:23:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2020-09-04 16:23:46,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:23:46,620 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:23:46,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-09-04 16:23:46,620 INFO L427 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:23:46,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:23:46,621 INFO L82 PathProgramCache]: Analyzing trace with hash 116292585, now seen corresponding path program 76 times [2020-09-04 16:23:46,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:23:46,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569101168] [2020-09-04 16:23:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:23:46,623 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:23:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:23:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:47,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:23:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:47,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:47,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:48,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:49,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:49,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:50,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:50,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:50,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:51,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:51,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:51,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:52,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:54,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:54,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:55,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:55,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:55,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:56,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:56,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:57,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:57,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:58,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:58,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:58,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:58,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:59,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:23:59,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:23:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:01,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:02,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:03,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:04,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14478 trivial. 0 not checked. [2020-09-04 16:24:14,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569101168] [2020-09-04 16:24:14,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:24:14,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2020-09-04 16:24:14,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611528202] [2020-09-04 16:24:14,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-09-04 16:24:14,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:24:14,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-09-04 16:24:14,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3085, Invalid=3395, Unknown=0, NotChecked=0, Total=6480 [2020-09-04 16:24:14,065 INFO L87 Difference]: Start difference. First operand 425 states and 439 transitions. Second operand 81 states. [2020-09-04 16:24:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:24:17,938 INFO L93 Difference]: Finished difference Result 436 states and 450 transitions. [2020-09-04 16:24:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-09-04 16:24:17,939 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 782 [2020-09-04 16:24:17,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:24:17,942 INFO L225 Difference]: With dead ends: 436 [2020-09-04 16:24:17,943 INFO L226 Difference]: Without dead ends: 430 [2020-09-04 16:24:17,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5776 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=9245, Invalid=15561, Unknown=0, NotChecked=0, Total=24806 [2020-09-04 16:24:17,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-04 16:24:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-04 16:24:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-04 16:24:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 444 transitions. [2020-09-04 16:24:17,960 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 444 transitions. Word has length 782 [2020-09-04 16:24:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:24:17,960 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 444 transitions. [2020-09-04 16:24:17,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-09-04 16:24:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 444 transitions. [2020-09-04 16:24:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-09-04 16:24:17,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:24:17,968 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:24:17,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-09-04 16:24:17,969 INFO L427 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:24:17,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:24:17,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1698779971, now seen corresponding path program 77 times [2020-09-04 16:24:17,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:24:17,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320585036] [2020-09-04 16:24:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:24:17,972 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:24:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:18,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:24:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:24:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:18,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:20,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:21,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:22,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:22,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:23,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:23,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:23,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:25,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:25,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:26,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:26,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:27,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:27,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:27,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:29,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:29,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:29,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:30,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:30,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:30,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:31,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:31,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:31,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:31,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:31,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:32,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:32,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:33,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:34,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:35,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14861 trivial. 0 not checked. [2020-09-04 16:24:46,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320585036] [2020-09-04 16:24:46,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:24:46,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2020-09-04 16:24:46,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961040253] [2020-09-04 16:24:46,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-09-04 16:24:46,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:24:46,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-09-04 16:24:46,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3164, Invalid=3478, Unknown=0, NotChecked=0, Total=6642 [2020-09-04 16:24:46,038 INFO L87 Difference]: Start difference. First operand 430 states and 444 transitions. Second operand 82 states. [2020-09-04 16:24:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:24:50,097 INFO L93 Difference]: Finished difference Result 441 states and 455 transitions. [2020-09-04 16:24:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-09-04 16:24:50,098 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 792 [2020-09-04 16:24:50,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:24:50,101 INFO L225 Difference]: With dead ends: 441 [2020-09-04 16:24:50,101 INFO L226 Difference]: Without dead ends: 435 [2020-09-04 16:24:50,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5929 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=9482, Invalid=15958, Unknown=0, NotChecked=0, Total=25440 [2020-09-04 16:24:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-04 16:24:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2020-09-04 16:24:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-04 16:24:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 449 transitions. [2020-09-04 16:24:50,118 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 449 transitions. Word has length 792 [2020-09-04 16:24:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:24:50,119 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 449 transitions. [2020-09-04 16:24:50,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-09-04 16:24:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 449 transitions. [2020-09-04 16:24:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2020-09-04 16:24:50,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:24:50,124 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:24:50,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2020-09-04 16:24:50,125 INFO L427 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:24:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:24:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1972235415, now seen corresponding path program 78 times [2020-09-04 16:24:50,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:24:50,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623001063] [2020-09-04 16:24:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:24:50,127 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:24:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:24:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:24:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:51,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:51,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:51,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:52,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:52,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:53,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:54,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:55,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:55,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:56,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:56,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:57,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:57,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:58,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:58,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:59,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:24:59,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:24:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:00,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:00,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:01,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:01,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:01,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:02,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:03,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:03,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:03,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:03,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:05,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:05,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:05,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:05,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:06,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:08,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:09,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-04 16:25:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:25:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 15249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15249 trivial. 0 not checked. [2020-09-04 16:25:18,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623001063] [2020-09-04 16:25:18,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:25:18,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [] total 83 [2020-09-04 16:25:18,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591137234] [2020-09-04 16:25:18,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-09-04 16:25:18,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:25:18,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-09-04 16:25:18,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3244, Invalid=3562, Unknown=0, NotChecked=0, Total=6806 [2020-09-04 16:25:18,711 INFO L87 Difference]: Start difference. First operand 435 states and 449 transitions. Second operand 83 states.